title: StarTech.com 4 Port PCI Express RS232 Serial Adapter Card - Single-Lane PCI Express - Breakout Cable - RS232 Extension - PCIe Serial Card (PEX4S553B)
full: StarTech.com 4 Port PCI Express RS232 Serial Adapter Card - Single-Lane PCI Express - Breakout Cable - RS232 Extension - PCIe Serial Card ()
  ['The 4-Port PCI Express Serial Card (with breakout cable) lets you add 4 RS232 serial ports using a single PCIe expansion slot, with an included 1-to-4 cable enabling you to add 4 serial ports to a single low profile slot. The serial card features a native single-chip design that provides optimum reliability and speed, reducing the CPU load by up to 48% over conventional bridge-chip serial cards - a cost-effective solution for connecting legacy serial devices to PCIe-enabled computers. The multi-port serial adapter includes both full profile and low profile/half-height brackets for compatibility with standard and small form factor computers, and is compatible with a broad range of operating systems, including Windows, Linux, and MAC OS. This 4-Port Serial Card is a replacement for our  card. Backed by a StarTech..']
  ['Native single chip design', 'Includes a full profile and low profile/half-height bracket', 'On chip 256-byte depth FIFO in transmit/receive path of each port', 'Single-Lane (x1) PCI-Express with throughput up to 2.5Gbps', 'Supports hardware and software flow control']
  {"Brand": "StarTech", "Series": "4 Port PCI Express Serial Card", "Operating System": "Windows 8 Mac OS X Mavericks (10.9) Linux Windows Server 2012 Windows 7 Mac OS X Yosemite (10.10) Windows 10 Windows Server 2016 Windows Server 2019", "Item Weight": "0.11 Pounds", "Product Dimensions": "3.17 x 0.47 x 2.7 inches", "Item Dimensions  LxWxH": "3.17 x 0.47 x 2.7 inches", "Color": "Black", "Computer Memory Type": "DDR3L-1600 SDRAM", "Manufacturer": "StarTech.com", "Language": "English", "Country of Origin": "China", "Is Discontinued By Manufacturer": "No", "Date First Available": "April 14, 2011", "Hardware Interface": "PCI", "Item Dimensions LxWxH": "3.17 x 0.47 x 2.7 inches", "Style": "4 Port"}