This HDMI splitter 4K is used to split the HDMI signal from a set-top box or another HDMI source to 2 TVs. Ideal if you want to show the same presentation or film on two screens simultaneously. The Split 312 UHD supports 4K and 3D and is therefore suitable for connection to your Ultra HD TV(s). If required, select your maximum video resolution on the HDMI output, using the unique EDID switch.