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Title: HDMI 4x1 Multiviewer Switcher  
Category: Electronics  
Brand: Portta  
Description: A compact 4‑input to 1‑output HDMI multiviewer that supports up to 4K@30Hz with seamless switching and audio extraction.  
Details: Features a 5‑mode display (single, 2‑window, 3‑window, 4‑window, and full screen), built‑in audio extractor, and scalable up/down resolution with HDCP 1.4 compliance.

Price is $