Split an hdmi audiovideo source to two separate hdmi displays with support for hdmi 4k and power through a nearby usb port the st122hd4ku 2 port video splitter supports ultra hd 4k ensuring astonishing picture quality four times the resolution of high definition 1080p while sharing a 4k hdmi video source between two hdmi displays the 4k splitter is backward compatible with previous hdmi revisions supporting 1080p 720p hdmi video resolution devices such as computers blu ray player