This unit is not a switcher, it will not let you screen multiple HDMI source on 1 TV. 4K ULTRA HD RESOLUTION - HDMI Splitter for dual monitor support 4K, 3840x2160p, 3D, and 480i@60Hz/ 480p@60Hz/ 576i@50Hz/ 576p@50Hz/ 720p@50/ 60Hz/ 1080i@50/60Hz/ 1080p@50/60Hz/ 1080P 24Hz 3D/720 60Hz /4K@30HZ [For 4K resolution, the frequency can't above 30Hz].
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