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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">As filed with the
Securities and Exchange Commission on September&nbsp;24, 2004</font></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="right" style="margin:0in 0in .0001pt;text-align:right;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Registration No. 333-</font></p>

<p align="right" style="margin:0in 0in .0001pt;text-align:right;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

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<p align="right" style="border:none;margin:0in 0in .0001pt;padding:0in;text-align:right;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="5" face="Times New Roman" style="font-size:18.0pt;font-weight:bold;">UNITED
STATES<br>
SECURITIES AND EXCHANGE COMMISSION</font></b></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">WASHINGTON,
D.C. 20549</font></b></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="5" face="Times New Roman" style="font-size:18.0pt;font-weight:bold;">FORM S-8</font></b></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="3" face="Times New Roman" style="font-size:12.0pt;font-weight:bold;">REGISTRATION
STATEMENT<br>
UNDER THE SECURITIES ACT OF 1933</font></b></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="5" face="Times New Roman" style="font-size:18.0pt;font-weight:bold;">ADAPTEC,
INC.</font></b></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(Exact Name of registrant
as specified in its charter)</font></p>

<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<table border="0" cellspacing="0" cellpadding="0" width="100%" style="border-collapse:collapse;width:100.0%;">
 <tr>
  <td width="49%" valign="top" style="padding:0in 0in 0in 0in;width:49.0%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Delaware</font></b></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.0%;">
  <p style="font-size:1.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
  <td width="49%" valign="top" style="padding:0in 0in 0in 0in;width:49.0%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">94-2748530</font></b></p>
  </td>
 </tr>
 <tr>
  <td width="49%" valign="top" style="padding:0in 0in 0in 0in;width:49.0%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(State or other
  jurisdiction of<br>
  incorporation or organization)</font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.0%;">
  <p style="font-size:1.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
  <td width="49%" valign="top" style="padding:0in 0in 0in 0in;width:49.0%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(I.R.S. Employer<br>
  Identification No.)</font></p>
  </td>
 </tr>
 <tr>
  <td width="49%" valign="top" style="padding:0in 0in 0in 0in;width:49.0%;">
  <p align="center" style="font-size:12.0pt;margin:0in 0in .0001pt;text-align:center;">&nbsp;</p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.0%;">
  <p style="font-size:12.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
  <td width="49%" valign="top" style="padding:0in 0in 0in 0in;width:49.0%;">
  <p align="center" style="font-size:12.0pt;margin:0in 0in .0001pt;text-align:center;">&nbsp;</p>
  </td>
 </tr>
 <tr>
  <td width="49%" valign="top" style="padding:0in 0in 0in 0in;width:49.0%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">691 S.
  Milpitas Blvd., Milpitas, California</font></b></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.0%;">
  <p style="font-size:1.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
  <td width="49%" valign="top" style="padding:0in 0in 0in 0in;width:49.0%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">95035</font></b></p>
  </td>
 </tr>
 <tr>
  <td width="49%" valign="top" style="padding:0in 0in 0in 0in;width:49.0%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(Address of Principal Executive
  Offices)</font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.0%;">
  <p style="font-size:1.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
  <td width="49%" valign="top" style="padding:0in 0in 0in 0in;width:49.0%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(Zip Code)</font></p>
  </td>
 </tr>
</table>

<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Stock
options granted pursuant to<br>
Adaptec, Inc. 2004 Equity Incentive Plan</font></b></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(Full titles of the
plans)</font></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Robert
N. Stephens<br>
President and Chief Executive Officer<br>
Adaptec, Inc.<br>
691 S. Milpitas Blvd.<br>
Milpitas, California 95035<br>
408-945-8600</font></b></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(Name, address and
telephone number, including area code, of agent for service)</font></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><i><font size="2" face="Times New Roman" style="font-size:10.0pt;font-style:italic;">Copies
to</font></i><font size="2" style="font-size:10.0pt;">:</font></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Daniel
J. Winnike, Esq.</font></b></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Scott J
Leichtner, Esq.</font></b></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Fenwick
&amp; West LLP</font></b></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Silicon
Valley Center</font></b></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">801
California Street</font></b></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Mountain
View, California 94041</font></b></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(Counsel to the
Registrant)</font></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">CALCULATION
OF REGISTRATION FEE</font></b></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<table border="0" cellspacing="0" cellpadding="0" width="100%" style="border-collapse:collapse;width:100.0%;">
 <tr>
  <td width="37%" valign="bottom" style="border:none;border-bottom:solid windowtext .5pt;padding:0in 0in 0in 0in;width:37.0%;">
  <p style="margin:0in 0in .0001pt;"><b><font size="1" face="Times New Roman" style="font-size:8.0pt;font-weight:bold;">Title of each <br>
  class of securities <br>
  to be registered</font></b></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.0%;">
  <p style="font-size:1.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
  <td width="12%" valign="bottom" style="border:none;border-bottom:solid windowtext .5pt;padding:0in 0in 0in 0in;width:12.0%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="1" face="Times New Roman" style="font-size:8.0pt;font-weight:bold;">Amount to
  be<br>
  Registered (1)</font></b></p>
  </td>
  <td width="3%" valign="bottom" style="padding:0in 0in 0in 0in;width:3.0%;">
  <p style="font-size:1.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
  <td width="14%" colspan="2" valign="bottom" style="border:none;border-bottom:solid windowtext .5pt;padding:0in 0in 0in 0in;width:14.52%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="1" face="Times New Roman" style="font-size:8.0pt;font-weight:bold;">Proposed
  maximum<br>
  offering price<br>
  per share</font></b></p>
  </td>
  <td width="3%" valign="bottom" style="padding:0in 0in 0in 0in;width:3.0%;">
  <p style="font-size:1.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
  <td width="14%" colspan="2" valign="bottom" style="border:none;border-bottom:solid windowtext .5pt;padding:0in 0in 0in 0in;width:14.52%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="1" face="Times New Roman" style="font-size:8.0pt;font-weight:bold;">Proposed
  maximum<br>
  aggregate offering<br>
  price</font></b></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.0%;">
  <p style="font-size:1.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
  <td width="9%" colspan="2" valign="bottom" style="border:none;border-bottom:solid windowtext .5pt;padding:0in 0in 0in 0in;width:9.02%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="1" face="Times New Roman" style="font-size:8.0pt;font-weight:bold;">Amount of<br>
  registration<br>
  fee</font></b></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.94%;">
  <p style="font-size:1.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
 </tr>
 <tr>
  <td width="37%" valign="top" style="border:none;padding:0in 0in 0in 0in;width:37.0%;">
  <p style="margin:0in 0in .0001pt 10.0pt;text-indent:-10.0pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Common Stock, $0.001 par value, to be issued under
  the 2004 Equity Incentive Plan</font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.0%;">
  <p style="font-size:1.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
  <td width="12%" valign="bottom" style="border:none;padding:0in 0in 0in 0in;width:12.0%;">
  <p align="right" style="margin:0in 0in .0001pt;text-align:right;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">10,000,000</font></p>
  </td>
  <td width="3%" valign="bottom" style="padding:0in 0in .7pt 0in;width:3.0%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(2)</font></p>
  </td>
  <td width="1%" valign="bottom" style="border:none;padding:0in 0in 0in 0in;width:1.3%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">$</font></p>
  </td>
  <td width="13%" valign="bottom" style="border:none;border-top:solid windowtext .5pt;padding:0in 0in 0in 0in;width:13.22%;">
  <p align="right" style="margin:0in 0in .0001pt;text-align:right;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">7.65</font></p>
  </td>
  <td width="3%" valign="bottom" style="padding:0in 0in .7pt 0in;width:3.0%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(3)</font></p>
  </td>
  <td width="1%" valign="bottom" style="border:none;padding:0in 0in 0in 0in;width:1.3%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">$</font></p>
  </td>
  <td width="13%" valign="bottom" style="border:none;border-top:solid windowtext .5pt;padding:0in 0in 0in 0in;width:13.22%;">
  <p align="right" style="margin:0in 0in .0001pt;text-align:right;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">76,500,000</font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.0%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="1%" valign="bottom" style="border:none;padding:0in 0in 0in 0in;width:1.3%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">$</font></p>
  </td>
  <td width="7%" valign="bottom" style="border:none;border-top:solid windowtext .5pt;padding:0in 0in 0in 0in;width:7.72%;">
  <p align="right" style="margin:0in 0in .0001pt;text-align:right;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">9,693</font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.94%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
 </tr>
 <tr>
  <td width="37%" valign="top" style="padding:0in 0in 0in 0in;width:37.0%;">
  <p style="margin:0in 0in .0001pt 10.0pt;text-indent:-10.0pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Common Stock, $0.001 par value, to be issued under
  the 2000 Nonstatutory Stock Option Plan</font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.0%;">
  <p style="font-size:1.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
  <td width="12%" valign="bottom" style="padding:0in 0in 0in 0in;width:12.0%;">
  <p align="right" style="margin:0in 0in .0001pt;text-align:right;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">3,226,093</font></p>
  </td>
  <td width="3%" valign="bottom" style="padding:0in 0in .7pt 0in;width:3.0%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(2)</font></p>
  </td>
  <td width="14%" colspan="2" valign="bottom" style="padding:0in 0in 0in 0in;width:14.52%;">
  <p align="right" style="margin:0in 0in .0001pt;text-align:right;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">N/A</font></p>
  </td>
  <td width="3%" valign="bottom" style="padding:0in 0in 0in 0in;width:3.0%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="14%" colspan="2" valign="bottom" style="padding:0in 0in 0in 0in;width:14.52%;">
  <p align="right" style="margin:0in 0in .0001pt;text-align:right;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">N/A</font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.0%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="9%" colspan="2" valign="bottom" style="padding:0in 0in 0in 0in;width:9.02%;">
  <p align="right" style="margin:0in 0in .0001pt;text-align:right;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">N/A</font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in 0in .7pt 0in;width:2.94%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(2)</font></p>
  </td>
 </tr>
 <tr>
  <td width="37%" valign="top" style="padding:0in 0in 0in 0in;width:37.0%;">
  <p style="margin:0in 0in .0001pt 10.0pt;text-indent:-10.0pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Common Stock, $0.001 par value, to be issued under
  the 1999 Stock Plan</font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.0%;">
  <p style="font-size:1.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
  <td width="12%" valign="bottom" style="padding:0in 0in 0in 0in;width:12.0%;">
  <p align="right" style="margin:0in 0in .0001pt;text-align:right;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">1,575,708</font></p>
  </td>
  <td width="3%" valign="bottom" style="padding:0in 0in .7pt 0in;width:3.0%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(2)</font></p>
  </td>
  <td width="14%" colspan="2" valign="bottom" style="padding:0in 0in 0in 0in;width:14.52%;">
  <p align="right" style="margin:0in 0in .0001pt;text-align:right;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">N/A</font></p>
  </td>
  <td width="3%" valign="bottom" style="padding:0in 0in 0in 0in;width:3.0%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="14%" colspan="2" valign="bottom" style="padding:0in 0in 0in 0in;width:14.52%;">
  <p align="right" style="margin:0in 0in .0001pt;text-align:right;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">N/A</font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.0%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="9%" colspan="2" valign="bottom" style="padding:0in 0in 0in 0in;width:9.02%;">
  <p align="right" style="margin:0in 0in .0001pt;text-align:right;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">N/A</font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in 0in .7pt 0in;width:2.94%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(2)</font></p>
  </td>
 </tr>
 <tr>
  <td width="37%" valign="top" style="padding:0in 0in 0in 0in;width:37.0%;">
  <p style="margin:0in 0in .0001pt 10.0pt;text-indent:-10.0pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Total</font></b></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.0%;">
  <p style="font-size:1.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
  <td width="12%" valign="bottom" style="padding:0in 0in 0in 0in;width:12.0%;">
  <p align="right" style="margin:0in 0in .0001pt;text-align:right;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">14,801,801</font></p>
  </td>
  <td width="3%" valign="bottom" style="padding:0in 0in 0in 0in;width:3.0%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="1%" valign="bottom" style="padding:0in 0in 0in 0in;width:1.3%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">$</font></p>
  </td>
  <td width="13%" valign="bottom" style="padding:0in 0in 0in 0in;width:13.22%;">
  <p align="right" style="margin:0in 0in .0001pt;text-align:right;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">7.65</font></p>
  </td>
  <td width="3%" valign="bottom" style="padding:0in 0in 0in 0in;width:3.0%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="1%" valign="bottom" style="padding:0in 0in 0in 0in;width:1.3%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">$</font></p>
  </td>
  <td width="13%" valign="bottom" style="padding:0in 0in 0in 0in;width:13.22%;">
  <p align="right" style="margin:0in 0in .0001pt;text-align:right;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">76,500,000</font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.0%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
  <td width="1%" valign="bottom" style="padding:0in 0in 0in 0in;width:1.3%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">$</font></p>
  </td>
  <td width="7%" valign="bottom" style="padding:0in 0in 0in 0in;width:7.72%;">
  <p align="right" style="margin:0in 0in .0001pt;text-align:right;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">9,693</font></p>
  </td>
  <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.94%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(2)</font></p>
  </td>
 </tr>
</table>

<div style="border:none;border-bottom:double windowtext 9.0pt;padding:0in 0in 0in 0in;">

<p style="border:none;margin:0in 0in .0001pt;padding:0in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

</div>

<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>


<div style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">

<hr size="2" width="100%" noshade color="gray" align="left">

</font></div>

<font size="2" face="Times New Roman" style="font-size:10.0pt;">
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</font>

<p align="center" style="font-size:10.0pt;margin:0in 0in .0001pt;text-align:center;">&nbsp;</p>

<p style="margin:0in 0in .0001pt .25in;text-indent:-.25in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(1)</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font><font size="2" style="font-size:10.0pt;">Pursuant to Rule 416(a) </font><font size="2" style="font-size:10.0pt;">of the Securities Act of
1933, as amended (the &#147;Securities Act&#148;) </font><font size="2" style="font-size:10.0pt;">this registration statement also covers any additional
securities that may be offered or issued as part of any stock split, stock
dividend or similar transaction.</font></p>

<p style="margin:0in 0in .0001pt .25in;text-indent:-.25in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p style="margin:0in 0in .0001pt .25in;text-indent:-.25in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(2)</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font><font size="2" style="font-size:10.0pt;">There are 10,000,000 shares
reserved for issuance under the </font><font size="2" style="font-size:10.0pt;">Adaptec, Inc. 2004 Equity Incentive Plan (the &#147;2004
Plan&#148;).</font><font size="2" style="font-size:10.0pt;"> Also, the following unissued shares (the &#147;Carryover Shares&#148;) have been
carried over from the Registrant&#146;s other equity incentive plans and are
issuable under the 2004 Plan: </font><font size="2" style="font-size:10.0pt;">3,226,093</font><font size="2" style="font-size:10.0pt;"> shares that were previously
registered on the Form S-8 (File No. 333-52512) under the Adaptec, Inc. 2000
Nonstatutory Stock Option Plan; and </font><font size="2" style="font-size:10.0pt;">1,575,708</font><font size="2" style="font-size:10.0pt;"> shares that were previously
registered on Post-Effective Amendment No. 1 to Form S-8 (File
No.&nbsp;333-77321) under the Adaptec, Inc. 1999 Stock Plan.&#160; The Carryover Shares and the corresponding
portion of the registration fees previously paid by the Registrant are being
carried over to this Registration Statement in accordance with Instruction E to
Form S-8 and </font><font size="2" style="font-size:10.0pt;">Rule
457(p) of the Securities Act.</font></p>

<p style="margin:0in 0in .0001pt .25in;text-indent:-.25in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p style="font-size:10.0pt;margin:0in 0in .0001pt .25in;text-indent:-.25in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(3)</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font>Estimated in accordance with Rule 457(c) and (h) of the Securities Act solely for the purpose of calculating the registration fee. Computation based upon the average of the high and low prices of the Registrant&#146;s common stock as reported on The Nasdaq National Market on September&nbsp;22, 2004 because the price at which options to be granted in the future may be exercised is not currently determinable.</p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">2</font></p>


<div style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">

<hr size="2" width="100%" noshade color="gray" align="left">

</font></div>

<font size="2" face="Times New Roman" style="font-size:10.0pt;">
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<p align="center" style="font-size:10.0pt;margin:0in 0in .0001pt;text-align:center;">&nbsp;</p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Adaptec,
Inc.</font></b></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">REGISTRATION
STATEMENT ON FORM S-8</font></b></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p style="margin:0in 0in .0001pt .25in;text-indent:.25in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">This
Registration Statement on Form S-8 is filed by the Registrant to register
10,000,000 shares of its common stock </font><font size="2" style="font-size:10.0pt;">issuable under the provisions of the Adaptec, Inc.
2004 Equity Incentive Plan and 4,801,801 shares of its common stock (the
&#147;Carrryover Shares&#148;) which includes, 3,226,093</font><font size="2" style="font-size:10.0pt;"> shares that were previously
registered on the Form S-8 (File No. 333-52512) under the Adaptec, Inc. 2000
Nonstatutory Stock Option Plan; and </font><font size="2" style="font-size:10.0pt;">1,575,708</font><font size="2" style="font-size:10.0pt;"> shares that were previously
registered on Post-Effective Amendment No. 1 to Form S-8 (File
No.&nbsp;333-77321) under the Adaptec, Inc. 1999 Stock Plan.&#160; The Carryover Shares and the corresponding
portion of the registration fees previously paid by the Registrant are being
carried over to this Registration Statement in accordance with Instruction E to
Form S-8 and </font><font size="2" style="font-size:10.0pt;">Rule
457(p) of the Securities Act.</font><font size="2" style="font-size:10.0pt;"> The Registrant is, simultaneous with the
filing of this registration statement, deregistering the shares that have been
previously registered.</font></p>

<p style="margin:0in 0in .0001pt .25in;text-indent:-.25in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">PART I</font></b></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">INFORMATION
REQUIRED IN THE SECTION&nbsp;10(a) PROSPECTUS</font></b></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p style="margin:0in 0in .0001pt .75in;text-indent:-.75in;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Item
1.</font></b><b><font size="1" style="font-size:3.0pt;font-weight:bold;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font></b><b><font size="2" style="font-size:10.0pt;font-weight:bold;">Plan Information.&#160; (1)</font></b></p>

<p style="margin:0in 0in .0001pt .75in;text-indent:-.75in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p style="margin:0in 0in .0001pt .75in;text-indent:-.75in;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Item
2.</font></b><b><font size="1" style="font-size:3.0pt;font-weight:bold;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font></b><b><font size="2" style="font-size:10.0pt;font-weight:bold;">Registrant Information
and Employee Plan Annual Information.&#160;
(1)</font></b></p>

<p style="margin:0in 0in .0001pt .75in;text-indent:-.75in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(1)</font><font size="1" style="font-size:8.5pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font><font size="2" style="font-size:10.0pt;">Information required by Part I to be
contained in the Section&nbsp;10(a) prospectus is omitted from this
Registration Statement in accordance with Rule 428 under the Securities Act and
the Note to Part I of Form S-8.</font></p>

<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">PART II</font></b></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">INFORMATION
REQUIRED IN THE REGISTRATION STATEMENT</font></b></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p style="margin:0in 0in .0001pt .75in;text-indent:-.75in;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Item
3.</font></b><b><font size="1" style="font-size:8.5pt;font-weight:bold;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font></b><b><font size="2" style="font-size:10.0pt;font-weight:bold;">Incorporation of
Documents by Reference.</font></b></p>

<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">The following documents
filed with the Securities and Exchange Commission (the &#147;Commission&#148;) are
incorporated herein by reference:</font></p>

<p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p style="margin:0in 0in .0001pt 1.0in;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(a)</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font><font size="2" style="font-size:10.0pt;">the Registrant&#146;s annual report on Form
10-K for the fiscal year ended March&nbsp;31, 2004 except for Item 7,
&#147;Management&#146;s Discussion and Analysis of Financial Condition and Results of
Operations,&#148; and Item 8, &#147;Financial Statements and Supplementary Data&#148; that are
incorporated by reference from our Current Report on Form 8-K filed
September&nbsp;24, 2004, as referenced below;</font></p>

<p style="margin:0in 0in .0001pt 1.0in;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p style="margin:0in 0in .0001pt 1.0in;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(b)</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font><font size="2" style="font-size:10.0pt;">the Registrant&#146;s
quarterly report on Form 10-Q for the quarter ended July&nbsp;2, 2004;</font></p>

<p style="margin:0in 0in .0001pt 1.0in;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p style="margin:0in 0in .0001pt 1.0in;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(c)</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font><font size="2" style="font-size:10.0pt;">the Registrant&#146;s
current report on Form 8-K filed with the Commission on July&nbsp;2, 2004;</font></p>

<p style="margin:0in 0in .0001pt 1.0in;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p style="margin:0in 0in .0001pt 1.0in;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(d)</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font><font size="2" style="font-size:10.0pt;">the Registrant&#146;s
current report on Form 8-K filed with the Commission on
July&nbsp;14,&nbsp;2004;</font></p>

<p style="margin:0in 0in .0001pt 1.0in;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p style="margin:0in 0in .0001pt 1.0in;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(e)</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font><font size="2" style="font-size:10.0pt;">the Registrant&#146;s
current report on Form 8-K filed with the Commission on September&nbsp;24,
2004, which includes amended and restated Item 7, &#147;Management&#146;s Discussion and
Analysis of Financial Condition and Results of Operations,&#148; and Item 8,
&#147;Financial Statements and Supplementary Data&#148;; and</font></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">3</font></p>


<div style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">

<hr size="2" width="100%" noshade color="gray" align="left">

</font></div>

<font size="2" face="Times New Roman" style="font-size:10.0pt;">
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</font>

<p align="center" style="font-size:10.0pt;margin:0in 0in .0001pt;text-align:center;">&nbsp;</p>

<p style="margin:0in 0in .0001pt 1.0in;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(d)</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font><font size="2" style="font-size:10.0pt;">Items 1 and 2 of the Registrant&#146;s
registration statement on Form&nbsp;8-A filed July&nbsp;20, 1992 pursuant to
the Exchange Act and Exhibit No.&nbsp;1 to Amendment No.&nbsp;4 of the
Registrant&#146;s registration statement on Form&nbsp;8-A filed January&nbsp;14,
1997 amending its Form&nbsp;8-A filed May&nbsp;11, 1989.</font></p>

<p style="margin:0in 0in .0001pt 1.0in;text-indent:-.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">All documents
subsequently filed by the Registrant pursuant to Sections 13(a), 13(c), 14 and
15(d) of the Exchange Act, prior to the filing of a post-effective amendment
which indicates that all securities registered hereby have been sold or which
deregisters all securities then remaining unsold, shall be deemed incorporated
by reference herein and to be a part hereof from the date of the filing of such
documents.</font></p>

<p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p style="margin:0in 0in .0001pt .75in;text-indent:-.75in;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Item
4.</font></b><b><font size="1" style="font-size:3.0pt;font-weight:bold;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font></b><b><font size="2" style="font-size:10.0pt;font-weight:bold;">Description of Securities.</font></b></p>

<p style="margin:0in 0in .0001pt .75in;text-indent:-.75in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Not applicable.</font></p>

<p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p style="margin:0in 0in .0001pt .75in;text-indent:-.75in;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Item
5.</font></b><b><font size="1" style="font-size:3.0pt;font-weight:bold;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font></b><b><font size="2" style="font-size:10.0pt;font-weight:bold;">Interests&nbsp;of&nbsp;Named&nbsp;Experts&nbsp;and&nbsp;Counsel.</font></b></p>

<p style="margin:0in 0in .0001pt .75in;text-indent:-.75in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Not applicable.</font></p>

<p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p style="margin:0in 0in .0001pt .75in;text-indent:-.75in;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Item
6.</font></b><b><font size="1" style="font-size:3.0pt;font-weight:bold;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font></b><b><font size="2" style="font-size:10.0pt;font-weight:bold;">Indemnification&nbsp;of&nbsp;Directors&nbsp;and&nbsp;Officers.</font></b></p>

<p style="margin:0in 0in .0001pt .75in;text-indent:-.75in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">The Registrant&#146;s
Certificate of Incorporation limits the liability of directors to the maximum
extent permitted by Delaware law. Delaware law provides that directors of a
corporation will not be personally liable for monetary damages for a breach of
their fiduciary duties as directors, except for liability (i) for any breach of
their duty of loyalty to the corporation or its stockholders, (ii) for acts or
omissions not in good faith or that involve intentional misconduct or a knowing
violation of law, (iii) for unlawful payments of dividends or unlawful stock
repurchases or redemptions as provided in Section&nbsp;174 of the Delaware
General Corporation Law, or (iv) for any transaction from which the director
derived an improper personal benefit</font></p>

<p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">The Registrant&#146;s Amended
and Restated Bylaws provide that the Registrant shall indemnify its directors
and officers and may indemnify its employees and other agents to the fullest
extent permitted by law. The Registrant&#146;s Amended and Restated Bylaws also
permit the Registrant to secure insurance on behalf of any officer, director,
employee or other agent for any liability arising out of his or her actions in
such capacity, regardless of whether the Registrant would have the power to
indemnify him or her against such liability under the General Corporation Law
of the State of Delaware. The Registrant currently has secured such insurance
on behalf of its officers and directors.</font></p>

<p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">The Registrant has
entered into agreements to indemnify its directors and officers, in addition to
indemnification provided for in the Registrant&#146;s Amended and Restated Bylaws.
Subject to certain conditions, these agreements, among other things, indemnify
the Registrant&#146;s directors and officers for certain expenses (including
attorneys&#146; fees), judgments, fines and settlement amounts incurred by any such
person in any action or proceeding, including any action by or in the right of
the Registrant, arising out of such person&#146;s services as a director or officer
of the Registrant, any subsidiary of the Registrant or any other company or
enterprise to which the person provides services at the request of the Registrant.</font></p>

<p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p style="margin:0in 0in .0001pt .75in;text-indent:-.75in;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Item
7.</font></b><b><font size="1" style="font-size:3.0pt;font-weight:bold;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font></b><b><font size="2" style="font-size:10.0pt;font-weight:bold;">Exemption From
Registration Claimed.</font></b></p>

<p style="margin:0in 0in .0001pt .75in;text-indent:-.75in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Not applicable</font></p>

<p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p style="margin:0in 0in .0001pt .75in;text-indent:-.75in;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Item
8.</font></b><b><font size="1" style="font-size:3.0pt;font-weight:bold;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font></b><b><font size="2" style="font-size:10.0pt;font-weight:bold;">Exhibits.</font></b></p>

<p style="margin:0in 0in .0001pt .75in;text-indent:-.75in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<table border="0" cellspacing="0" cellpadding="0" width="100%" style="border-collapse:collapse;width:100.0%;">
 <tr>
  <td width="6%" valign="bottom" style="border:none;border-bottom:solid windowtext .5pt;padding:0in 0in 0in 0in;width:6.52%;">
  <p style="margin:0in 0in .0001pt;"><b><font size="1" face="Times New Roman" style="font-size:8.0pt;font-weight:bold;">Exhibit<br>
  Number</font></b></p>
  </td>
  <td width="1%" valign="bottom" style="padding:0in 0in 0in 0in;width:1.34%;">
  <p align="center" style="font-size:1.0pt;margin:0in 0in .0001pt;text-align:center;">&nbsp;</p>
  </td>
  <td width="92%" valign="bottom" style="border:none;border-bottom:solid windowtext .5pt;padding:0in 0in 0in 0in;width:92.14%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="1" face="Times New Roman" style="font-size:8.0pt;font-weight:bold;">Exhibit
  Description</font></b></p>
  </td>
 </tr>
 <tr>
  <td width="6%" valign="top" style="border:none;padding:0in 0in 0in 0in;width:6.52%;">
  <p style="font-size:12.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
  <td width="1%" valign="bottom" style="padding:0in 0in 0in 0in;width:1.34%;">
  <p style="font-size:12.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
  <td width="92%" valign="top" style="border:none;padding:0in 0in 0in 0in;width:92.14%;">
  <p style="font-size:12.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
 </tr>
 <tr>
  <td width="6%" valign="top" style="padding:0in 0in 0in 0in;width:6.52%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">4.01</font></p>
  </td>
  <td width="1%" valign="bottom" style="padding:0in 0in 0in 0in;width:1.34%;">
  <p style="font-size:1.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
  <td width="92%" valign="top" style="padding:0in 0in 0in 0in;width:92.14%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Certificate of Incorporation of Registrant filed
  with the Delaware Secretary of State (incorporated by reference to Exhibit 3.1
  to the Registrant&#146;s Annual Report on Form 10-K for the year ended
  March&nbsp;31, 1998).</font></p>
  </td>
 </tr>
 <tr>
  <td width="6%" valign="top" style="padding:0in 0in 0in 0in;width:6.52%;">
  <p align="center" style="font-size:12.0pt;margin:0in 0in .0001pt;text-align:center;">&nbsp;</p>
  </td>
  <td width="1%" valign="bottom" style="padding:0in 0in 0in 0in;width:1.34%;">
  <p style="font-size:12.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
  <td width="92%" valign="top" style="padding:0in 0in 0in 0in;width:92.14%;">
  <p style="font-size:12.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
 </tr>
 <tr>
  <td width="6%" valign="top" style="padding:0in 0in 0in 0in;width:6.52%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">4.02</font></p>
  </td>
  <td width="1%" valign="bottom" style="padding:0in 0in 0in 0in;width:1.34%;">
  <p style="font-size:1.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
  <td width="92%" valign="top" style="padding:0in 0in 0in 0in;width:92.14%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Bylaws of Registrant, as amended&nbsp; (incorporated
  by reference to Exhibit 3.02 to the Registrant&#146;s </font></p>
  </td>
 </tr>
</table>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">4</font></p>


<div style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">

<hr size="2" width="100%" noshade color="gray" align="left">

</font></div>

<font size="2" face="Times New Roman" style="font-size:10.0pt;">
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<br clear="all" style="page-break-before:always;">
</font>

<p align="center" style="font-size:10.0pt;margin:0in 0in .0001pt;text-align:center;">&nbsp;</p>

<table border="0" cellspacing="0" cellpadding="0" width="100%" style="border-collapse:collapse;width:100.0%;">
 <tr>
  <td width="6%" valign="top" style="padding:0in 0in 0in 0in;width:6.52%;">
  <p align="center" style="font-size:1.0pt;margin:0in 0in .0001pt;text-align:center;">&nbsp;</p>
  </td>
  <td width="1%" valign="bottom" style="padding:0in 0in 0in 0in;width:1.34%;">
  <p style="font-size:1.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
  <td width="92%" valign="top" style="padding:0in 0in 0in 0in;width:92.14%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Annual Report on Form 10-K for the year ended
  March&nbsp;31, 2004).</font></p>
  </td>
 </tr>
 <tr>
  <td width="6%" valign="top" style="padding:0in 0in 0in 0in;width:6.52%;">
  <p align="center" style="font-size:12.0pt;margin:0in 0in .0001pt;text-align:center;">&nbsp;</p>
  </td>
  <td width="1%" valign="bottom" style="padding:0in 0in 0in 0in;width:1.34%;">
  <p style="font-size:12.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
  <td width="92%" valign="top" style="padding:0in 0in 0in 0in;width:92.14%;">
  <p style="font-size:12.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
 </tr>
 <tr>
  <td width="6%" valign="top" style="padding:0in 0in 0in 0in;width:6.52%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">4.03</font></p>
  </td>
  <td width="1%" valign="bottom" style="padding:0in 0in 0in 0in;width:1.34%;">
  <p style="font-size:1.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
  <td width="92%" valign="top" style="padding:0in 0in 0in 0in;width:92.14%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Adaptec, Inc. 2004 Equity Incentive Plan (and
  related forms of Option Agreements and Option Exercise Agreements).</font></p>
  </td>
 </tr>
 <tr>
  <td width="6%" valign="top" style="padding:0in 0in 0in 0in;width:6.52%;">
  <p align="center" style="font-size:12.0pt;margin:0in 0in .0001pt;text-align:center;">&nbsp;</p>
  </td>
  <td width="1%" valign="bottom" style="padding:0in 0in 0in 0in;width:1.34%;">
  <p style="font-size:12.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
  <td width="92%" valign="top" style="padding:0in 0in 0in 0in;width:92.14%;">
  <p style="font-size:12.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
 </tr>
 <tr>
  <td width="6%" valign="top" style="padding:0in 0in 0in 0in;width:6.52%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">5.01</font></p>
  </td>
  <td width="1%" valign="bottom" style="padding:0in 0in 0in 0in;width:1.34%;">
  <p style="font-size:1.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
  <td width="92%" valign="top" style="padding:0in 0in 0in 0in;width:92.14%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Opinion of Fenwick &amp; West LLP.</font></p>
  </td>
 </tr>
 <tr>
  <td width="6%" valign="top" style="padding:0in 0in 0in 0in;width:6.52%;">
  <p align="center" style="font-size:12.0pt;margin:0in 0in .0001pt;text-align:center;">&nbsp;</p>
  </td>
  <td width="1%" valign="bottom" style="padding:0in 0in 0in 0in;width:1.34%;">
  <p style="font-size:12.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
  <td width="92%" valign="top" style="padding:0in 0in 0in 0in;width:92.14%;">
  <p style="font-size:12.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
 </tr>
 <tr>
  <td width="6%" valign="top" style="padding:0in 0in 0in 0in;width:6.52%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">23.01</font></p>
  </td>
  <td width="1%" valign="bottom" style="padding:0in 0in 0in 0in;width:1.34%;">
  <p style="font-size:1.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
  <td width="92%" valign="top" style="padding:0in 0in 0in 0in;width:92.14%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Consent of Fenwick &amp; West LLP (included in
  Exhibit 5.01).</font></p>
  </td>
 </tr>
 <tr>
  <td width="6%" valign="top" style="padding:0in 0in 0in 0in;width:6.52%;">
  <p align="center" style="font-size:12.0pt;margin:0in 0in .0001pt;text-align:center;">&nbsp;</p>
  </td>
  <td width="1%" valign="bottom" style="padding:0in 0in 0in 0in;width:1.34%;">
  <p style="font-size:12.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
  <td width="92%" valign="top" style="padding:0in 0in 0in 0in;width:92.14%;">
  <p style="font-size:12.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
 </tr>
 <tr>
  <td width="6%" valign="top" style="padding:0in 0in 0in 0in;width:6.52%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">23.02</font></p>
  </td>
  <td width="1%" valign="bottom" style="padding:0in 0in 0in 0in;width:1.34%;">
  <p style="font-size:1.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
  <td width="92%" valign="top" style="padding:0in 0in 0in 0in;width:92.14%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Consent of PricewaterhouseCoopers LLP, independent
  registered public accounting firm.</font></p>
  </td>
 </tr>
 <tr>
  <td width="6%" valign="top" style="padding:0in 0in 0in 0in;width:6.52%;">
  <p align="center" style="font-size:12.0pt;margin:0in 0in .0001pt;text-align:center;">&nbsp;</p>
  </td>
  <td width="1%" valign="bottom" style="padding:0in 0in 0in 0in;width:1.34%;">
  <p style="font-size:12.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
  <td width="92%" valign="top" style="padding:0in 0in 0in 0in;width:92.14%;">
  <p style="font-size:12.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
 </tr>
 <tr>
  <td width="6%" valign="top" style="padding:0in 0in 0in 0in;width:6.52%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">24.01</font></p>
  </td>
  <td width="1%" valign="bottom" style="padding:0in 0in 0in 0in;width:1.34%;">
  <p style="font-size:1.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
  <td width="92%" valign="top" style="padding:0in 0in 0in 0in;width:92.14%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Power of Attorney (see signature page to this
  registration statement).</font></p>
  </td>
 </tr>
</table>

<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p style="margin:0in 0in .0001pt .75in;text-indent:-.75in;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Item
9.</font></b><b><font size="1" style="font-size:3.0pt;font-weight:bold;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font></b><b><font size="2" style="font-size:10.0pt;font-weight:bold;">Undertakings.</font></b></p>

<p style="margin:0in 0in .0001pt .75in;text-indent:-.75in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">The undersigned
Registrant hereby undertakes:</font></p>

<p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p style="margin:0in 0in .0001pt .75in;punctuation-wrap:simple;text-indent:-.25in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(1)&nbsp;&nbsp;To
file, during any period in which offers or sales are being made, a
post-effective amendment to this Registration Statement:</font></p>

<p style="margin:0in 0in .0001pt .75in;punctuation-wrap:simple;text-indent:-.25in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p style="margin:0in 0in .0001pt 1.25in;punctuation-wrap:simple;text-indent:-.25in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(i)&nbsp;&nbsp;To
include any prospectus required by Section&nbsp;10(a)(3) of the Securities Act;</font></p>

<p style="margin:0in 0in .0001pt 1.25in;punctuation-wrap:simple;text-indent:-.25in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p style="margin:0in 0in .0001pt 1.25in;punctuation-wrap:simple;text-indent:-.25in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(ii)&nbsp;&nbsp;To
reflect in the prospectus any facts or events arising after the effective date
of the Registration Statement (or the most recent post-effective amendment
thereof) which, individually or in the aggregate, represent a fundamental
change in the information set forth in the Registration Statement.&nbsp;
Notwithstanding the foregoing, any increase or decrease in volume of securities
offered (if the total dollar value of securities offered would not exceed that
which was registered) and any deviation from the low or high end of the
estimated maximum offering range may be reflected in the form of prospectus
filed with the Commission pursuant to Rule 424(b) if, in the aggregate, the
changes in volume and price represent no more than a 20 percent change in the
maximum aggregate offering price set forth in the &#147;Calculation of Registration
Fee&#148; table in the effective registration statement;</font></p>

<p style="margin:0in 0in .0001pt 1.25in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p style="margin:0in 0in .0001pt 1.25in;punctuation-wrap:simple;text-indent:-.25in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(iii)&nbsp;&nbsp;To
include any material information with respect to the plan of distribution not
previously disclosed in the Registration Statement or any material change to
such information in the Registration Statement.</font></p>

<p style="margin:0in 0in .0001pt 1.25in;punctuation-wrap:simple;text-indent:-.25in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p style="margin:0in 0in .0001pt .75in;punctuation-wrap:simple;"><i><font size="2" face="Times New Roman" style="font-size:10.0pt;font-style:italic;">provided,
however</font></i><font size="2" style="font-size:10.0pt;">, that
paragraphs (1)(i) and (1)(ii) above do not apply if the information required to
be included in a post-effective amendment by those paragraphs is contained in
periodic reports filed with or furnished to the Commission by Registrant
pursuant to Section&nbsp;13 or Section&nbsp;15(d) of the Exchange Act that are
incorporated by reference in the registration statement.</font></p>

<p style="margin:0in 0in .0001pt .75in;punctuation-wrap:simple;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p style="margin:0in 0in .0001pt .75in;punctuation-wrap:simple;text-indent:-.25in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(2)&nbsp;&nbsp;That,
for the purpose of determining any liability under the Securities Act, each
such post-effective amendment shall be deemed to be a new registration
statement relating to the securities offered therein and the offering of such
securities at that time shall be deemed to be the initial bona fide offering
thereof.</font></p>

<p style="margin:0in 0in .0001pt .75in;punctuation-wrap:simple;text-indent:-.25in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p style="margin:0in 0in .0001pt .75in;punctuation-wrap:simple;text-indent:-.25in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(3)&nbsp;&nbsp;To
remove from registration by means of a post-effective amendment any of the
securities being registered that remain unsold at the termination of the
offering.</font></p>

<p style="margin:0in 0in .0001pt .75in;punctuation-wrap:simple;text-indent:-.25in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">The undersigned
Registrant hereby undertakes that, for purposes of determining any liability
under the Securities Act of 1933, each filing of the Registrant&#146;s annual report
pursuant to Section&nbsp;13(a) or 15(d) of the Securities Exchange Act of 1934
(and, where applicable, each filing of an employee benefit plan&#146;s annual report
pursuant to Section&nbsp;15(d) of the Securities Exchange Act of 1934) that is
incorporated by reference in the registration statement shall be deemed to be a
new registration statement relating to the securities offered therein, and the
offering of such securities at that time shall be deemed to be the initial <i><font style="font-style:italic;">bona fide</font></i> offering thereof.</font></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">5</font></p>


<div style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">

<hr size="2" width="100%" noshade color="gray" align="left">

</font></div>

<font size="2" face="Times New Roman" style="font-size:10.0pt;">
<!-- SEQ.=1,FOLIO='5',FILE='C:\jms\sgutthi\04-10895-1\task188531\10895-1-ba.htm',USER='jfernandez',CD='Sep 24 23:09 2004' -->
<br clear="all" style="page-break-before:always;">
</font>

<p align="center" style="font-size:10.0pt;margin:0in 0in .0001pt;text-align:center;">&nbsp;</p>

<p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Insofar as
indemnification for liabilities arising under the Securities Act of 1933 may be
permitted to directors, officers and controlling persons of the Registrant
pursuant to Item 6, or otherwise, the Registrant has been advised that in the
opinion of the Securities and Exchange Commission such indemnification is
against public policy as expressed in the Act and is, therefore,
unenforceable.&nbsp; In the event that a claim for indemnification against such
liabilities (other than the payment by the Registrant of expenses incurred or
paid by a director, officer or controlling person of the Registrant in the
successful defense of any action, suit or proceeding) is asserted by such
director, officer or controlling person in connection with the securities being
registered, the Registrant will, unless in the opinion of its counsel the
matter has been settled by controlling precedent, submit to a court of
appropriate jurisdiction the question whether such indemnification by it is
against public policy as expressed in the Act and will be governed by the final
adjudication of such issue.</font></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">6</font></p>


<div style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">

<hr size="2" width="100%" noshade color="gray" align="left">

</font></div>

<font size="2" face="Times New Roman" style="font-size:10.0pt;">
<!-- SEQ.=1,FOLIO='6',FILE='C:\jms\sgutthi\04-10895-1\task188531\10895-1-ba.htm',USER='jfernandez',CD='Sep 24 23:09 2004' -->
<br clear="all" style="page-break-before:always;">
</font>

<p align="center" style="font-size:10.0pt;margin:0in 0in .0001pt;text-align:center;">&nbsp;</p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">SIGNATURES</font></b></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Pursuant to the requirements of the
Securities Act of 1933, the Registrant certifies that it has reasonable grounds
to believe that it meets all of the requirements for filing on Form S-8 and has
duly caused this Registration Statement to be signed on its behalf by the
undersigned, thereunto duly authorized, in the City of Milpitas, State of
California, on this 24<sup>th</sup> day of September, 2004.</font></p>

<p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<table border="0" cellspacing="0" cellpadding="0" width="100%" style="border-collapse:collapse;width:100.0%;">
 <tr>
  <td width="49%" valign="top" style="padding:0in 0in 0in 0in;width:49.84%;">
  <p style="font-size:1.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
  <td width="50%" colspan="3" valign="top" style="padding:0in 0in 0in 0in;width:50.16%;">
  <p style="margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">ADAPTEC, INC.</font></b></p>
  </td>
 </tr>
 <tr>
  <td width="49%" valign="top" style="padding:0in 0in 0in 0in;width:49.84%;">
  <p style="font-size:12.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
  <td width="4%" valign="top" style="padding:0in 0in 0in 0in;width:4.48%;">
  <p style="font-size:12.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
  <td width="45%" colspan="2" valign="top" style="padding:0in 0in 0in 0in;width:45.68%;">
  <p style="font-size:12.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
 </tr>
 <tr>
  <td width="49%" valign="top" style="padding:0in 0in 0in 0in;width:49.84%;">
  <p style="font-size:1.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
  <td width="4%" valign="top" style="padding:0in 0in 0in 0in;width:4.48%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">By:</font></p>
  </td>
  <td width="31%" valign="top" style="border:none;border-bottom:solid windowtext .5pt;padding:0in 0in 0in 0in;width:31.18%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">/s/ Robert N. Stephens</font></p>
  </td>
  <td width="14%" valign="top" style="padding:0in 0in 0in 0in;width:14.5%;">
  <p style="font-size:1.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
 </tr>
 <tr>
  <td width="49%" valign="top" style="padding:0in 0in 0in 0in;width:49.84%;">
  <p style="font-size:1.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
  <td width="4%" valign="top" style="padding:0in 0in 0in 0in;width:4.48%;">
  <p style="font-size:1.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
  <td width="45%" colspan="2" valign="top" style="padding:0in 0in 0in 0in;width:45.68%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Robert N. Stephens</font></p>
  </td>
 </tr>
 <tr>
  <td width="49%" valign="top" style="padding:0in 0in 0in 0in;width:49.84%;">
  <p style="font-size:1.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
  <td width="4%" valign="top" style="padding:0in 0in 0in 0in;width:4.48%;">
  <p style="font-size:1.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
  <td width="45%" colspan="2" valign="top" style="padding:0in 0in 0in 0in;width:45.68%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">President and Chief Executive Officer</font></p>
  </td>
 </tr>
</table>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">POWER OF
ATTORNEY</font></b></p>

<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">KNOW ALL PERSONS BY THESE
PRESENTS, that each person whose signature appears below hereby constitutes and
appoints Robert N. Stephens and Marshall Mohr, and each of them acting
individually, as his or her attorney-in- fact, each with full power of
substitution, for him or her in any and all capacities, to sign any and all
amendments to this Registration Statement on Form S-8, and to file the same,
with exhibits thereto and other documents in connection therewith, with the Securities
and Exchange Commission, hereby ratifying and confirming all that each of said
attorneys-in-fact, or any substitute, may do or cause to be done by virtue
hereof.&nbsp; This Power of Attorney may be executed in any number of
counterparts, each of which when so executed and delivered shall be deemed an
original, and such counterparts shall together constitute one and the same
instrument.</font></p>

<p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Pursuant to the requirements of the
Securities Act, this registration statement has been signed by the following
persons in the capacities indicated on this 24<sup>th</sup> day of September,
2004:</font></p>

<p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<table border="0" cellspacing="0" cellpadding="0" width="100%" style="border-collapse:collapse;width:100.0%;">
 <tr>
  <td width="31%" valign="bottom" style="border:none;border-bottom:solid windowtext .5pt;padding:0in 0in 0in 0in;width:31.94%;">
  <p style="margin:0in 0in .0001pt;"><b><font size="1" face="Times New Roman" style="font-size:8.0pt;font-weight:bold;">Signature</font></b></p>
  </td>
  <td width="11%" valign="bottom" style="padding:0in 0in 0in 0in;width:11.16%;">
  <p align="center" style="font-size:1.0pt;margin:0in 0in .0001pt;text-align:center;">&nbsp;</p>
  </td>
  <td width="56%" valign="bottom" style="border:none;border-bottom:solid windowtext .5pt;padding:0in 0in 0in 0in;width:56.9%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="1" face="Times New Roman" style="font-size:8.0pt;font-weight:bold;">Title</font></b></p>
  </td>
 </tr>
 <tr>
  <td width="31%" valign="top" style="border:none;padding:0in 0in 0in 0in;width:31.94%;">
  <p style="font-size:12.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
  <td width="11%" valign="top" style="padding:0in 0in 0in 0in;width:11.16%;">
  <p style="font-size:12.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
  <td width="56%" valign="top" style="border:none;padding:0in 0in 0in 0in;width:56.9%;">
  <p style="font-size:12.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
 </tr>
 <tr>
  <td width="31%" valign="top" style="padding:0in 0in 0in 0in;width:31.94%;">
  <p style="margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Principal Executive Officer:</font></b></p>
  </td>
  <td width="11%" valign="top" style="padding:0in 0in 0in 0in;width:11.16%;">
  <p style="font-size:1.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
  <td width="56%" valign="top" style="padding:0in 0in 0in 0in;width:56.9%;">
  <p style="font-size:1.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
 </tr>
 <tr>
  <td width="31%" valign="top" style="padding:0in 0in 0in 0in;width:31.94%;">
  <p style="font-size:12.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
  <td width="11%" valign="top" style="padding:0in 0in 0in 0in;width:11.16%;">
  <p style="font-size:12.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
  <td width="56%" valign="top" style="padding:0in 0in 0in 0in;width:56.9%;">
  <p style="font-size:12.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
 </tr>
 <tr>
  <td width="31%" valign="top" style="border:none;border-bottom:solid windowtext .5pt;padding:0in 0in 0in 0in;width:31.94%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">/s/ Robert N. Stephens</font></p>
  </td>
  <td width="11%" valign="top" style="padding:0in 0in 0in 0in;width:11.16%;">
  <p style="font-size:1.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
  <td width="56%" valign="top" style="padding:0in 0in 0in 0in;width:56.9%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Chief Executive Officer and Director</font></p>
  </td>
 </tr>
 <tr>
  <td width="31%" valign="top" style="border:none;padding:0in 0in 0in 0in;width:31.94%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Robert N. Stephens</font></p>
  </td>
  <td width="11%" valign="top" style="padding:0in 0in 0in 0in;width:11.16%;">
  <p style="font-size:1.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
  <td width="56%" valign="top" style="padding:0in 0in 0in 0in;width:56.9%;">
  <p style="font-size:1.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
 </tr>
 <tr>
  <td width="31%" valign="top" style="padding:0in 0in 0in 0in;width:31.94%;">
  <p align="center" style="font-size:12.0pt;margin:0in 0in .0001pt;text-align:center;">&nbsp;</p>
  </td>
  <td width="11%" valign="top" style="padding:0in 0in 0in 0in;width:11.16%;">
  <p style="font-size:12.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
  <td width="56%" valign="top" style="padding:0in 0in 0in 0in;width:56.9%;">
  <p style="font-size:12.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
 </tr>
 <tr>
  <td width="31%" valign="top" style="padding:0in 0in 0in 0in;width:31.94%;">
  <p style="margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Principal Financial and Accounting
  Officer:</font></b></p>
  </td>
  <td width="11%" valign="top" style="padding:0in 0in 0in 0in;width:11.16%;">
  <p style="font-size:1.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
  <td width="56%" valign="top" style="padding:0in 0in 0in 0in;width:56.9%;">
  <p style="font-size:1.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
 </tr>
 <tr>
  <td width="31%" valign="top" style="padding:0in 0in 0in 0in;width:31.94%;">
  <p align="center" style="font-size:12.0pt;margin:0in 0in .0001pt;text-align:center;">&nbsp;</p>
  </td>
  <td width="11%" valign="top" style="padding:0in 0in 0in 0in;width:11.16%;">
  <p style="font-size:12.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
  <td width="56%" valign="top" style="padding:0in 0in 0in 0in;width:56.9%;">
  <p style="font-size:12.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
 </tr>
 <tr>
  <td width="31%" valign="top" style="border:none;border-bottom:solid windowtext .5pt;padding:0in 0in 0in 0in;width:31.94%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">/s/ Marshall L. Mohr</font></p>
  </td>
  <td width="11%" valign="top" style="padding:0in 0in 0in 0in;width:11.16%;">
  <p style="font-size:1.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
  <td width="56%" valign="top" style="padding:0in 0in 0in 0in;width:56.9%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Chief Financial Officer</font></p>
  </td>
 </tr>
 <tr>
  <td width="31%" valign="top" style="border:none;padding:0in 0in 0in 0in;width:31.94%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Marshall L. Mohr</font></p>
  </td>
  <td width="11%" valign="top" style="padding:0in 0in 0in 0in;width:11.16%;">
  <p style="font-size:1.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
  <td width="56%" valign="top" style="padding:0in 0in 0in 0in;width:56.9%;">
  <p style="font-size:1.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
 </tr>
 <tr>
  <td width="31%" valign="top" style="padding:0in 0in 0in 0in;width:31.94%;">
  <p align="center" style="font-size:12.0pt;margin:0in 0in .0001pt;text-align:center;">&nbsp;</p>
  </td>
  <td width="11%" valign="top" style="padding:0in 0in 0in 0in;width:11.16%;">
  <p style="font-size:12.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
  <td width="56%" valign="top" style="padding:0in 0in 0in 0in;width:56.9%;">
  <p style="font-size:12.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
 </tr>
 <tr>
  <td width="31%" valign="top" style="padding:0in 0in 0in 0in;width:31.94%;">
  <p style="margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Other Directors:</font></b></p>
  </td>
  <td width="11%" valign="top" style="padding:0in 0in 0in 0in;width:11.16%;">
  <p style="font-size:1.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
  <td width="56%" valign="top" style="padding:0in 0in 0in 0in;width:56.9%;">
  <p style="font-size:1.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
 </tr>
 <tr>
  <td width="31%" valign="top" style="padding:0in 0in 0in 0in;width:31.94%;">
  <p align="center" style="font-size:12.0pt;margin:0in 0in .0001pt;text-align:center;">&nbsp;</p>
  </td>
  <td width="11%" valign="top" style="padding:0in 0in 0in 0in;width:11.16%;">
  <p style="font-size:12.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
  <td width="56%" valign="top" style="padding:0in 0in 0in 0in;width:56.9%;">
  <p style="font-size:12.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
 </tr>
 <tr>
  <td width="31%" valign="top" style="border:none;border-bottom:solid windowtext .5pt;padding:0in 0in 0in 0in;width:31.94%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">/s/ Carl J. Conti</font></p>
  </td>
  <td width="11%" valign="top" style="padding:0in 0in 0in 0in;width:11.16%;">
  <p style="font-size:1.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
  <td width="56%" valign="top" style="padding:0in 0in 0in 0in;width:56.9%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Chairman of the Board of Directors</font></p>
  </td>
 </tr>
 <tr>
  <td width="31%" valign="top" style="border:none;padding:0in 0in 0in 0in;width:31.94%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Carl J. Conti</font></p>
  </td>
  <td width="11%" valign="top" style="padding:0in 0in 0in 0in;width:11.16%;">
  <p style="font-size:1.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
  <td width="56%" valign="top" style="padding:0in 0in 0in 0in;width:56.9%;">
  <p style="font-size:1.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
 </tr>
 <tr>
  <td width="31%" valign="top" style="padding:0in 0in 0in 0in;width:31.94%;">
  <p align="center" style="font-size:12.0pt;margin:0in 0in .0001pt;text-align:center;">&nbsp;</p>
  </td>
  <td width="11%" valign="top" style="padding:0in 0in 0in 0in;width:11.16%;">
  <p style="font-size:12.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
  <td width="56%" valign="top" style="padding:0in 0in 0in 0in;width:56.9%;">
  <p style="font-size:12.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
 </tr>
 <tr>
  <td width="31%" valign="top" style="border:none;border-bottom:solid windowtext .5pt;padding:0in 0in 0in 0in;width:31.94%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">/s/ Lucie J. Fjeldstad</font></p>
  </td>
  <td width="11%" valign="top" style="padding:0in 0in 0in 0in;width:11.16%;">
  <p style="font-size:1.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
  <td width="56%" valign="top" style="padding:0in 0in 0in 0in;width:56.9%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Director</font></p>
  </td>
 </tr>
 <tr>
  <td width="31%" valign="top" style="border:none;padding:0in 0in 0in 0in;width:31.94%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Lucie J. Fjeldstad</font></p>
  </td>
  <td width="11%" valign="top" style="padding:0in 0in 0in 0in;width:11.16%;">
  <p style="font-size:1.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
  <td width="56%" valign="top" style="padding:0in 0in 0in 0in;width:56.9%;">
  <p style="font-size:1.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
 </tr>
 <tr>
  <td width="31%" valign="top" style="padding:0in 0in 0in 0in;width:31.94%;">
  <p align="center" style="font-size:12.0pt;margin:0in 0in .0001pt;text-align:center;">&nbsp;</p>
  </td>
  <td width="11%" valign="top" style="padding:0in 0in 0in 0in;width:11.16%;">
  <p style="font-size:12.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
  <td width="56%" valign="top" style="padding:0in 0in 0in 0in;width:56.9%;">
  <p style="font-size:12.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
 </tr>
 <tr>
  <td width="31%" valign="top" style="border:none;border-bottom:solid windowtext .5pt;padding:0in 0in 0in 0in;width:31.94%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">/s/ Joseph S. Kennedy</font></p>
  </td>
  <td width="11%" valign="top" style="padding:0in 0in 0in 0in;width:11.16%;">
  <p style="font-size:1.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
  <td width="56%" valign="top" style="padding:0in 0in 0in 0in;width:56.9%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Director</font></p>
  </td>
 </tr>
 <tr>
  <td width="31%" valign="top" style="border:none;padding:0in 0in 0in 0in;width:31.94%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Joseph S. Kennedy</font></p>
  </td>
  <td width="11%" valign="top" style="padding:0in 0in 0in 0in;width:11.16%;">
  <p style="font-size:1.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
  <td width="56%" valign="top" style="padding:0in 0in 0in 0in;width:56.9%;">
  <p style="font-size:1.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
 </tr>
</table>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">7</font></p>


<div style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">

<hr size="2" width="100%" noshade color="gray" align="left">

</font></div>

<font size="2" face="Times New Roman" style="font-size:10.0pt;">
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<br clear="all" style="page-break-before:always;">
</font>

<p style="font-size:10.0pt;margin:0in 0in .0001pt;">&nbsp;</p>

<table border="0" cellspacing="0" cellpadding="0" width="100%" style="border-collapse:collapse;width:100.0%;">
 <tr>
  <td width="31%" valign="top" style="border:none;border-bottom:solid windowtext .5pt;padding:0in 0in 0in 0in;width:31.94%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">/s/ Ilene H. Lang</font></p>
  </td>
  <td width="11%" valign="top" style="padding:0in 0in 0in 0in;width:11.16%;">
  <p style="font-size:1.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
  <td width="56%" valign="top" style="padding:0in 0in 0in 0in;width:56.9%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Director</font></p>
  </td>
 </tr>
 <tr>
  <td width="31%" valign="top" style="border:none;padding:0in 0in 0in 0in;width:31.94%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Ilene H. Lang</font></p>
  </td>
  <td width="11%" valign="top" style="padding:0in 0in 0in 0in;width:11.16%;">
  <p style="font-size:1.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
  <td width="56%" valign="top" style="padding:0in 0in 0in 0in;width:56.9%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
 </tr>
 <tr>
  <td width="31%" valign="top" style="padding:0in 0in 0in 0in;width:31.94%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="11%" valign="top" style="padding:0in 0in 0in 0in;width:11.16%;">
  <p style="font-size:12.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
  <td width="56%" valign="top" style="padding:0in 0in 0in 0in;width:56.9%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
 </tr>
 <tr>
  <td width="31%" valign="top" style="border:none;border-bottom:solid windowtext .5pt;padding:0in 0in 0in 0in;width:31.94%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">/s/ Robert J. Loarie</font></p>
  </td>
  <td width="11%" valign="top" style="padding:0in 0in 0in 0in;width:11.16%;">
  <p style="font-size:1.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
  <td width="56%" valign="top" style="padding:0in 0in 0in 0in;width:56.9%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Director</font></p>
  </td>
 </tr>
 <tr>
  <td width="31%" valign="top" style="border:none;padding:0in 0in 0in 0in;width:31.94%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Robert J. Loarie</font></p>
  </td>
  <td width="11%" valign="top" style="padding:0in 0in 0in 0in;width:11.16%;">
  <p style="font-size:1.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
  <td width="56%" valign="top" style="padding:0in 0in 0in 0in;width:56.9%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
 </tr>
 <tr>
  <td width="31%" valign="top" style="padding:0in 0in 0in 0in;width:31.94%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="11%" valign="top" style="padding:0in 0in 0in 0in;width:11.16%;">
  <p style="font-size:12.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
  <td width="56%" valign="top" style="padding:0in 0in 0in 0in;width:56.9%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
 </tr>
 <tr>
  <td width="31%" valign="top" style="border:none;border-bottom:solid windowtext .5pt;padding:0in 0in 0in 0in;width:31.94%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">/s/ D. Scott Mercer</font></p>
  </td>
  <td width="11%" valign="top" style="padding:0in 0in 0in 0in;width:11.16%;">
  <p style="font-size:1.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
  <td width="56%" valign="top" style="padding:0in 0in 0in 0in;width:56.9%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Director</font></p>
  </td>
 </tr>
 <tr>
  <td width="31%" valign="top" style="border:none;padding:0in 0in 0in 0in;width:31.94%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">D. Scott Mercer</font></p>
  </td>
  <td width="11%" valign="top" style="padding:0in 0in 0in 0in;width:11.16%;">
  <p style="font-size:1.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
  <td width="56%" valign="top" style="padding:0in 0in 0in 0in;width:56.9%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
  </td>
 </tr>
 <tr>
  <td width="31%" valign="top" style="padding:0in 0in 0in 0in;width:31.94%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
  <td width="11%" valign="top" style="padding:0in 0in 0in 0in;width:11.16%;">
  <p style="font-size:12.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
  <td width="56%" valign="top" style="padding:0in 0in 0in 0in;width:56.9%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  </td>
 </tr>
 <tr>
  <td width="31%" valign="top" style="border:none;border-bottom:solid windowtext .5pt;padding:0in 0in 0in 0in;width:31.94%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">/s/ Douglas Van
  Houweling</font></p>
  </td>
  <td width="11%" valign="top" style="padding:0in 0in 0in 0in;width:11.16%;">
  <p style="font-size:1.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
  <td width="56%" valign="top" style="padding:0in 0in 0in 0in;width:56.9%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Director</font></p>
  </td>
 </tr>
 <tr>
  <td width="31%" valign="top" style="border:none;padding:0in 0in 0in 0in;width:31.94%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Douglas Van Houweling</font></p>
  </td>
  <td width="11%" valign="top" style="padding:0in 0in 0in 0in;width:11.16%;">
  <p style="font-size:1.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
  <td width="56%" valign="top" style="padding:0in 0in 0in 0in;width:56.9%;">
  <p style="font-size:1.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
 </tr>
</table>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">8</font></p>


<div style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">

<hr size="2" width="100%" noshade color="gray" align="left">

</font></div>

<font size="2" face="Times New Roman" style="font-size:10.0pt;">
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</font>

<p align="center" style="font-size:10.0pt;margin:0in 0in .0001pt;text-align:center;">&nbsp;</p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">EXHIBIT
INDEX</font></b></p>

<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<table border="0" cellspacing="0" cellpadding="0" width="100%" style="border-collapse:collapse;width:100.0%;">
 <tr>
  <td width="6%" valign="bottom" style="border:none;border-bottom:solid windowtext .5pt;padding:0in 0in 0in 0in;width:6.62%;">
  <p style="margin:0in 0in .0001pt;"><b><font size="1" face="Times New Roman" style="font-size:8.0pt;font-weight:bold;">Exhibit<br>
  Number</font></b></p>
  </td>
  <td width="1%" valign="bottom" style="padding:0in 0in 0in 0in;width:1.68%;">
  <p align="center" style="font-size:1.0pt;margin:0in 0in .0001pt;text-align:center;">&nbsp;</p>
  </td>
  <td width="91%" valign="bottom" style="border:none;border-bottom:solid windowtext .5pt;padding:0in 0in 0in 0in;width:91.72%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="1" face="Times New Roman" style="font-size:8.0pt;font-weight:bold;">Exhibit
  Description</font></b></p>
  </td>
 </tr>
 <tr>
  <td width="6%" valign="top" style="border:none;padding:0in 0in 0in 0in;width:6.62%;">
  <p style="font-size:12.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
  <td width="1%" valign="bottom" style="padding:0in 0in 0in 0in;width:1.68%;">
  <p style="font-size:12.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
  <td width="91%" valign="top" style="border:none;padding:0in 0in 0in 0in;width:91.72%;">
  <p style="font-size:12.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
 </tr>
 <tr>
  <td width="6%" valign="top" style="padding:0in 0in 0in 0in;width:6.62%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">4.01</font></p>
  </td>
  <td width="1%" valign="bottom" style="padding:0in 0in 0in 0in;width:1.68%;">
  <p style="font-size:1.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
  <td width="91%" valign="top" style="padding:0in 0in 0in 0in;width:91.72%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Certificate of Incorporation of Registrant filed
  with the Delaware Secretary of State (incorporated by reference
  to&nbsp;Exhibit&nbsp;3.1 to the Registrant&#146;s Annual Report on Form 10-K for
  the year ended March&nbsp;31, 1998).</font></p>
  </td>
 </tr>
 <tr>
  <td width="6%" valign="top" style="padding:0in 0in 0in 0in;width:6.62%;">
  <p align="center" style="font-size:12.0pt;margin:0in 0in .0001pt;text-align:center;">&nbsp;</p>
  </td>
  <td width="1%" valign="bottom" style="padding:0in 0in 0in 0in;width:1.68%;">
  <p style="font-size:12.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
  <td width="91%" valign="top" style="padding:0in 0in 0in 0in;width:91.72%;">
  <p style="font-size:12.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
 </tr>
 <tr>
  <td width="6%" valign="top" style="padding:0in 0in 0in 0in;width:6.62%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">4.02</font></p>
  </td>
  <td width="1%" valign="bottom" style="padding:0in 0in 0in 0in;width:1.68%;">
  <p style="font-size:1.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
  <td width="91%" valign="top" style="padding:0in 0in 0in 0in;width:91.72%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Bylaws of Registrant, as amended&nbsp;(incorporated
  by reference to Exhibit 3.02 to the Registrant&#146;s Annual Report
  on&nbsp;Form&nbsp;10-K&nbsp;for the year ended March&nbsp;31, 2004).</font></p>
  </td>
 </tr>
 <tr>
  <td width="6%" valign="top" style="padding:0in 0in 0in 0in;width:6.62%;">
  <p align="center" style="font-size:12.0pt;margin:0in 0in .0001pt;text-align:center;">&nbsp;</p>
  </td>
  <td width="1%" valign="bottom" style="padding:0in 0in 0in 0in;width:1.68%;">
  <p style="font-size:12.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
  <td width="91%" valign="top" style="padding:0in 0in 0in 0in;width:91.72%;">
  <p style="font-size:12.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
 </tr>
 <tr>
  <td width="6%" valign="top" style="padding:0in 0in 0in 0in;width:6.62%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">4.03</font></p>
  </td>
  <td width="1%" valign="bottom" style="padding:0in 0in 0in 0in;width:1.68%;">
  <p style="font-size:1.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
  <td width="91%" valign="top" style="padding:0in 0in 0in 0in;width:91.72%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Adaptec, Inc. 2004 Equity Incentive Plan (and
  related forms of Option Agreements and Option Exercise Agreements).</font></p>
  </td>
 </tr>
 <tr>
  <td width="6%" valign="top" style="padding:0in 0in 0in 0in;width:6.62%;">
  <p align="center" style="font-size:12.0pt;margin:0in 0in .0001pt;text-align:center;">&nbsp;</p>
  </td>
  <td width="1%" valign="bottom" style="padding:0in 0in 0in 0in;width:1.68%;">
  <p style="font-size:12.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
  <td width="91%" valign="top" style="padding:0in 0in 0in 0in;width:91.72%;">
  <p style="font-size:12.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
 </tr>
 <tr>
  <td width="6%" valign="top" style="padding:0in 0in 0in 0in;width:6.62%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">5.01</font></p>
  </td>
  <td width="1%" valign="bottom" style="padding:0in 0in 0in 0in;width:1.68%;">
  <p style="font-size:1.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
  <td width="91%" valign="top" style="padding:0in 0in 0in 0in;width:91.72%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Opinion of Fenwick &amp; West LLP.</font></p>
  </td>
 </tr>
 <tr>
  <td width="6%" valign="top" style="padding:0in 0in 0in 0in;width:6.62%;">
  <p align="center" style="font-size:12.0pt;margin:0in 0in .0001pt;text-align:center;">&nbsp;</p>
  </td>
  <td width="1%" valign="bottom" style="padding:0in 0in 0in 0in;width:1.68%;">
  <p style="font-size:12.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
  <td width="91%" valign="top" style="padding:0in 0in 0in 0in;width:91.72%;">
  <p style="font-size:12.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
 </tr>
 <tr>
  <td width="6%" valign="top" style="padding:0in 0in 0in 0in;width:6.62%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">23.01</font></p>
  </td>
  <td width="1%" valign="bottom" style="padding:0in 0in 0in 0in;width:1.68%;">
  <p style="font-size:1.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
  <td width="91%" valign="top" style="padding:0in 0in 0in 0in;width:91.72%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Consent of Fenwick &amp; West LLP (included in
  Exhibit 5.01).</font></p>
  </td>
 </tr>
 <tr>
  <td width="6%" valign="top" style="padding:0in 0in 0in 0in;width:6.62%;">
  <p align="center" style="font-size:12.0pt;margin:0in 0in .0001pt;text-align:center;">&nbsp;</p>
  </td>
  <td width="1%" valign="bottom" style="padding:0in 0in 0in 0in;width:1.68%;">
  <p style="font-size:12.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
  <td width="91%" valign="top" style="padding:0in 0in 0in 0in;width:91.72%;">
  <p style="font-size:12.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
 </tr>
 <tr>
  <td width="6%" valign="top" style="padding:0in 0in 0in 0in;width:6.62%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">23.02</font></p>
  </td>
  <td width="1%" valign="bottom" style="padding:0in 0in 0in 0in;width:1.68%;">
  <p style="font-size:1.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
  <td width="91%" valign="top" style="padding:0in 0in 0in 0in;width:91.72%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Consent of PricewaterhouseCoopers LLP, independent
  registered public accounting firm.</font></p>
  </td>
 </tr>
 <tr>
  <td width="6%" valign="top" style="padding:0in 0in 0in 0in;width:6.62%;">
  <p align="center" style="font-size:12.0pt;margin:0in 0in .0001pt;text-align:center;">&nbsp;</p>
  </td>
  <td width="1%" valign="bottom" style="padding:0in 0in 0in 0in;width:1.68%;">
  <p style="font-size:12.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
  <td width="91%" valign="top" style="padding:0in 0in 0in 0in;width:91.72%;">
  <p style="font-size:12.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
 </tr>
 <tr>
  <td width="6%" valign="top" style="padding:0in 0in 0in 0in;width:6.62%;">
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">24.01</font></p>
  </td>
  <td width="1%" valign="bottom" style="padding:0in 0in 0in 0in;width:1.68%;">
  <p style="font-size:1.0pt;margin:0in 0in .0001pt;">&nbsp;</p>
  </td>
  <td width="91%" valign="top" style="padding:0in 0in 0in 0in;width:91.72%;">
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Power of Attorney (see signature page to this
  registration statement).</font></p>
  </td>
 </tr>
</table>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>

<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">9</font></p>


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<hr size="2" width="100%" noshade color="gray" align="left">

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{"company-data": {"conformed-name": "ADAPTEC INC", "cik": "0000709804", "assigned-sic": "3576", "irs-number": "942748530", "state-of-incorporation": "DE", "fiscal-year-end": "0331"}, "filing-values": {"form-type": "S-8", "act": "33", "file-number": "333-119271", "film-number": "041045455"}, "business-address": {"street1": "691 S MILPITAS BLVD", "street2": "M/S25", "city": "MILPITAS", "state": "CA", "zip": "95035", "phone": "4089458600"}, "mail-address": {"street1": "691 SOUTH MILPITAS BLVD", "street2": "M/S25", "city": "MILPITAS", "state": "CA", "zip": "95035"}}
As filed with the
Securities and Exchange Commission on September 24, 2004
Registration No. 333-
UNITED
STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON,
D.C. 20549
FORM S-8
REGISTRATION
STATEMENT
UNDER THE SECURITIES ACT OF 1933
ADAPTEC,
INC.
(Exact Name of registrant
as specified in its charter)
Delaware
94-2748530
(State or other
  jurisdiction of
incorporation or organization)
(I.R.S. Employer
Identification No.)
691 S.
  Milpitas Blvd., Milpitas, California
95035
(Address of Principal Executive
  Offices)
(Zip Code)
Stock
options granted pursuant to
Adaptec, Inc. 2004 Equity Incentive Plan
(Full titles of the
plans)
Robert
N. Stephens
President and Chief Executive Officer
Adaptec, Inc.
691 S. Milpitas Blvd.
Milpitas, California 95035
408-945-8600
(Name, address and
telephone number, including area code, of agent for service)
Copies
to
:
Daniel
J. Winnike, Esq.
Scott J
Leichtner, Esq.
Fenwick
& West LLP
Silicon
Valley Center
801
California Street
Mountain
View, California 94041
(Counsel to the
Registrant)
CALCULATION
OF REGISTRATION FEE
Title of each
class of securities
to be registered
Amount to
  be
Registered (1)
Proposed
  maximum
offering price
per share
Proposed
  maximum
aggregate offering
price
Amount of
registration
fee
Common Stock, $0.001 par value, to be issued under
  the 2004 Equity Incentive Plan
10,000,000
(2)
$
7.65
(3)
$
76,500,000
$
9,693
Common Stock, $0.001 par value, to be issued under
  the 2000 Nonstatutory Stock Option Plan
3,226,093
(2)
N/A
N/A
N/A
(2)
Common Stock, $0.001 par value, to be issued under
  the 1999 Stock Plan
1,575,708
(2)
N/A
N/A
N/A
(2)
Total
14,801,801
$
7.65
$
76,500,000
$
9,693
(2)
(1)
Pursuant to Rule 416(a)
of the Securities Act of
1933, as amended (the "Securities Act")
this registration statement also covers any additional
securities that may be offered or issued as part of any stock split, stock
dividend or similar transaction.
(2)
There are 10,000,000 shares
reserved for issuance under the
Adaptec, Inc. 2004 Equity Incentive Plan (the "2004
Plan").
Also, the following unissued shares (the "Carryover Shares") have been
carried over from the Registrant's other equity incentive plans and are
issuable under the 2004 Plan:
3,226,093
shares that were previously
registered on the Form S-8 (File No. 333-52512) under the Adaptec, Inc. 2000
Nonstatutory Stock Option Plan; and
1,575,708
shares that were previously
registered on Post-Effective Amendment No. 1 to Form S-8 (File
No. 333-77321) under the Adaptec, Inc. 1999 Stock Plan.  The Carryover Shares and the corresponding
portion of the registration fees previously paid by the Registrant are being
carried over to this Registration Statement in accordance with Instruction E to
Form S-8 and
Rule
457(p) of the Securities Act.
(3)
Estimated in accordance with Rule 457(c) and (h) of the Securities Act solely for the purpose of calculating the registration fee. Computation based upon the average of the high and low prices of the Registrant's common stock as reported on The Nasdaq National Market on September 22, 2004 because the price at which options to be granted in the future may be exercised is not currently determinable.
2
Adaptec,
Inc.
REGISTRATION
STATEMENT ON FORM S-8
This
Registration Statement on Form S-8 is filed by the Registrant to register
10,000,000 shares of its common stock
issuable under the provisions of the Adaptec, Inc.
2004 Equity Incentive Plan and 4,801,801 shares of its common stock (the
"Carrryover Shares") which includes, 3,226,093
shares that were previously
registered on the Form S-8 (File No. 333-52512) under the Adaptec, Inc. 2000
Nonstatutory Stock Option Plan; and
1,575,708
shares that were previously
registered on Post-Effective Amendment No. 1 to Form S-8 (File
No. 333-77321) under the Adaptec, Inc. 1999 Stock Plan.  The Carryover Shares and the corresponding
portion of the registration fees previously paid by the Registrant are being
carried over to this Registration Statement in accordance with Instruction E to
Form S-8 and
Rule
457(p) of the Securities Act.
The Registrant is, simultaneous with the
filing of this registration statement, deregistering the shares that have been
previously registered.
PART I
INFORMATION
REQUIRED IN THE SECTION 10(a) PROSPECTUS
Item
1.
Plan Information.  (1)
Item
2.
Registrant Information
and Employee Plan Annual Information. 
(1)
(1)
Information required by Part I to be
contained in the Section 10(a) prospectus is omitted from this
Registration Statement in accordance with Rule 428 under the Securities Act and
the Note to Part I of Form S-8.
PART II
INFORMATION
REQUIRED IN THE REGISTRATION STATEMENT
Item
3.
Incorporation of
Documents by Reference.
The following documents
filed with the Securities and Exchange Commission (the "Commission") are
incorporated herein by reference:
(a)
the Registrant's annual report on Form
10-K for the fiscal year ended March 31, 2004 except for Item 7,
"Management's Discussion and Analysis of Financial Condition and Results of
Operations," and Item 8, "Financial Statements and Supplementary Data" that are
incorporated by reference from our Current Report on Form 8-K filed
September 24, 2004, as referenced below;
(b)
the Registrant's
quarterly report on Form 10-Q for the quarter ended July 2, 2004;
(c)
the Registrant's
current report on Form 8-K filed with the Commission on July 2, 2004;
(d)
the Registrant's
current report on Form 8-K filed with the Commission on
July 14, 2004;
(e)
the Registrant's
current report on Form 8-K filed with the Commission on September 24,
2004, which includes amended and restated Item 7, "Management's Discussion and
Analysis of Financial Condition and Results of Operations," and Item 8,
"Financial Statements and Supplementary Data"; and
3
(d)
Items 1 and 2 of the Registrant's
registration statement on Form 8-A filed July 20, 1992 pursuant to
the Exchange Act and Exhibit No. 1 to Amendment No. 4 of the
Registrant's registration statement on Form 8-A filed January 14,
1997 amending its Form 8-A filed May 11, 1989.
All documents
subsequently filed by the Registrant pursuant to Sections 13(a), 13(c), 14 and
15(d) of the Exchange Act, prior to the filing of a post-effective amendment
which indicates that all securities registered hereby have been sold or which
deregisters all securities then remaining unsold, shall be deemed incorporated
by reference herein and to be a part hereof from the date of the filing of such
documents.
Item
4.
Description of Securities.
Not applicable.
Item
5.
Interests of Named Experts and Counsel.
Not applicable.
Item
6.
Indemnification of Directors and Officers.
The Registrant's
Certificate of Incorporation limits the liability of directors to the maximum
extent permitted by Delaware law. Delaware law provides that directors of a
corporation will not be personally liable for monetary damages for a breach of
their fiduciary duties as directors, except for liability (i) for any breach of
their duty of loyalty to the corporation or its stockholders, (ii) for acts or
omissions not in good faith or that involve intentional misconduct or a knowing
violation of law, (iii) for unlawful payments of dividends or unlawful stock
repurchases or redemptions as provided in Section 174 of the Delaware
General Corporation Law, or (iv) for any transaction from which the director
derived an improper personal benefit
The Registrant's Amended
and Restated Bylaws provide that the Registrant shall indemnify its directors
and officers and may indemnify its employees and other agents to the fullest
extent permitted by law. The Registrant's Amended and Restated Bylaws also
permit the Registrant to secure insurance on behalf of any officer, director,
employee or other agent for any liability arising out of his or her actions in
such capacity, regardless of whether the Registrant would have the power to
indemnify him or her against such liability under the General Corporation Law
of the State of Delaware. The Registrant currently has secured such insurance
on behalf of its officers and directors.
The Registrant has
entered into agreements to indemnify its directors and officers, in addition to
indemnification provided for in the Registrant's Amended and Restated Bylaws.
Subject to certain conditions, these agreements, among other things, indemnify
the Registrant's directors and officers for certain expenses (including
attorneys' fees), judgments, fines and settlement amounts incurred by any such
person in any action or proceeding, including any action by or in the right of
the Registrant, arising out of such person's services as a director or officer
of the Registrant, any subsidiary of the Registrant or any other company or
enterprise to which the person provides services at the request of the Registrant.
Item
7.
Exemption From
Registration Claimed.
Not applicable
Item
8.
Exhibits.
Exhibit
Number
Exhibit
  Description
4.01
Certificate of Incorporation of Registrant filed
  with the Delaware Secretary of State (incorporated by reference to Exhibit 3.1
  to the Registrant's Annual Report on Form 10-K for the year ended
  March 31, 1998).
4.02
Bylaws of Registrant, as amended  (incorporated
  by reference to Exhibit 3.02 to the Registrant's
4
Annual Report on Form 10-K for the year ended
  March 31, 2004).
4.03
Adaptec, Inc. 2004 Equity Incentive Plan (and
  related forms of Option Agreements and Option Exercise Agreements).
5.01
Opinion of Fenwick & West LLP.
23.01
Consent of Fenwick & West LLP (included in
  Exhibit 5.01).
23.02
Consent of PricewaterhouseCoopers LLP, independent
  registered public accounting firm.
24.01
Power of Attorney (see signature page to this
  registration statement).
Item
9.
Undertakings.
The undersigned
Registrant hereby undertakes:
(1)  To
file, during any period in which offers or sales are being made, a
post-effective amendment to this Registration Statement:
(i)  To
include any prospectus required by Section 10(a)(3) of the Securities Act;
(ii)  To
reflect in the prospectus any facts or events arising after the effective date
of the Registration Statement (or the most recent post-effective amendment
thereof) which, individually or in the aggregate, represent a fundamental
change in the information set forth in the Registration Statement. 
Notwithstanding the foregoing, any increase or decrease in volume of securities
offered (if the total dollar value of securities offered would not exceed that
which was registered) and any deviation from the low or high end of the
estimated maximum offering range may be reflected in the form of prospectus
filed with the Commission pursuant to Rule 424(b) if, in the aggregate, the
changes in volume and price represent no more than a 20 percent change in the
maximum aggregate offering price set forth in the "Calculation of Registration
Fee" table in the effective registration statement;
(iii)  To
include any material information with respect to the plan of distribution not
previously disclosed in the Registration Statement or any material change to
such information in the Registration Statement.
provided,
however
, that
paragraphs (1)(i) and (1)(ii) above do not apply if the information required to
be included in a post-effective amendment by those paragraphs is contained in
periodic reports filed with or furnished to the Commission by Registrant
pursuant to Section 13 or Section 15(d) of the Exchange Act that are
incorporated by reference in the registration statement.
(2)  That,
for the purpose of determining any liability under the Securities Act, each
such post-effective amendment shall be deemed to be a new registration
statement relating to the securities offered therein and the offering of such
securities at that time shall be deemed to be the initial bona fide offering
thereof.
(3)  To
remove from registration by means of a post-effective amendment any of the
securities being registered that remain unsold at the termination of the
offering.
The undersigned
Registrant hereby undertakes that, for purposes of determining any liability
under the Securities Act of 1933, each filing of the Registrant's annual report
pursuant to Section 13(a) or 15(d) of the Securities Exchange Act of 1934
(and, where applicable, each filing of an employee benefit plan's annual report
pursuant to Section 15(d) of the Securities Exchange Act of 1934) that is
incorporated by reference in the registration statement shall be deemed to be a
new registration statement relating to the securities offered therein, and the
offering of such securities at that time shall be deemed to be the initial
bona fide
offering thereof.
5
Insofar as
indemnification for liabilities arising under the Securities Act of 1933 may be
permitted to directors, officers and controlling persons of the Registrant
pursuant to Item 6, or otherwise, the Registrant has been advised that in the
opinion of the Securities and Exchange Commission such indemnification is
against public policy as expressed in the Act and is, therefore,
unenforceable.  In the event that a claim for indemnification against such
liabilities (other than the payment by the Registrant of expenses incurred or
paid by a director, officer or controlling person of the Registrant in the
successful defense of any action, suit or proceeding) is asserted by such
director, officer or controlling person in connection with the securities being
registered, the Registrant will, unless in the opinion of its counsel the
matter has been settled by controlling precedent, submit to a court of
appropriate jurisdiction the question whether such indemnification by it is
against public policy as expressed in the Act and will be governed by the final
adjudication of such issue.
6
SIGNATURES
Pursuant to the requirements of the
Securities Act of 1933, the Registrant certifies that it has reasonable grounds
to believe that it meets all of the requirements for filing on Form S-8 and has
duly caused this Registration Statement to be signed on its behalf by the
undersigned, thereunto duly authorized, in the City of Milpitas, State of
California, on this 24
th
day of September, 2004.
ADAPTEC, INC.
By:
/s/ Robert N. Stephens
Robert N. Stephens
President and Chief Executive Officer
POWER OF
ATTORNEY
KNOW ALL PERSONS BY THESE
PRESENTS, that each person whose signature appears below hereby constitutes and
appoints Robert N. Stephens and Marshall Mohr, and each of them acting
individually, as his or her attorney-in- fact, each with full power of
substitution, for him or her in any and all capacities, to sign any and all
amendments to this Registration Statement on Form S-8, and to file the same,
with exhibits thereto and other documents in connection therewith, with the Securities
and Exchange Commission, hereby ratifying and confirming all that each of said
attorneys-in-fact, or any substitute, may do or cause to be done by virtue
hereof.  This Power of Attorney may be executed in any number of
counterparts, each of which when so executed and delivered shall be deemed an
original, and such counterparts shall together constitute one and the same
instrument.
Pursuant to the requirements of the
Securities Act, this registration statement has been signed by the following
persons in the capacities indicated on this 24
th
day of September,
2004:
Signature
Title
Principal Executive Officer:
/s/ Robert N. Stephens
Chief Executive Officer and Director
Robert N. Stephens
Principal Financial and Accounting
  Officer:
/s/ Marshall L. Mohr
Chief Financial Officer
Marshall L. Mohr
Other Directors:
/s/ Carl J. Conti
Chairman of the Board of Directors
Carl J. Conti
/s/ Lucie J. Fjeldstad
Director
Lucie J. Fjeldstad
/s/ Joseph S. Kennedy
Director
Joseph S. Kennedy
7
/s/ Ilene H. Lang
Director
Ilene H. Lang
/s/ Robert J. Loarie
Director
Robert J. Loarie
/s/ D. Scott Mercer
Director
D. Scott Mercer
/s/ Douglas Van
  Houweling
Director
Douglas Van Houweling
8
EXHIBIT
INDEX
Exhibit
Number
Exhibit
  Description
4.01
Certificate of Incorporation of Registrant filed
  with the Delaware Secretary of State (incorporated by reference
  to Exhibit 3.1 to the Registrant's Annual Report on Form 10-K for
  the year ended March 31, 1998).
4.02
Bylaws of Registrant, as amended (incorporated
  by reference to Exhibit 3.02 to the Registrant's Annual Report
  on Form 10-K for the year ended March 31, 2004).
4.03
Adaptec, Inc. 2004 Equity Incentive Plan (and
  related forms of Option Agreements and Option Exercise Agreements).
5.01
Opinion of Fenwick & West LLP.
23.01
Consent of Fenwick & West LLP (included in
  Exhibit 5.01).
23.02
Consent of PricewaterhouseCoopers LLP, independent
  registered public accounting firm.
24.01
Power of Attorney (see signature page to this
  registration statement).
9