Use Tips: -If Your HDMI Source Device (like XBox, PS4) supports 4K, please use a HDMI cable 2.0 to connect 4K HDMI Source Device & HDMI switch& display, since HDMI cable 1.4 (or below HDMI 1.4 ) isn't enough to supportthe resolution of 4K (4096*2160). -2. If your HDMI cable is not HDMI cable 2.0, you couldadjust the resolution on your 4K HDMI Source device to 1080P (1920*1080) tomatch the specification of your HDMI cable. -3. HDMI switch box couldn't get two display devices to worksimultaneously when you connect 1 HDMI-Host to 2 HDMI TVs or monitors. Wide Resolution Range and BroadCompatibility HDMI splitter box supports all kinds of video formats, like3D, 1080p, 2K x 4K resolution, and also HD audio. Works with all devices fitted with HDMI port, such as PCs, laptops, gaming consoles, Xbox 360, Xbox One, PS3, PS4, projectors, TVreceivers, TVs and more.