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This 4-port HDMI switch features integrated audio extractor and ARC function based on HDMI2.0 standard. It allows four HDMI devices to share one HD display, while users can pull out digital optical or analog 3.5mm audio separately for soundbar, headphones and amplifiers. ARC enables audio signal backflow from connected TV to external audio equipment without an extra audio cable. It fully supports 4K@60Hz UHD, 1080P@120Hz high frame rate and 3D video content. With matched IR remote for long-distance channel toggle, no software installation needed. Widely compatible with game consoles, PC, Blu-ray players, TV boxes and smart TVs for home theater use.