Startechcom hdmi splitters startechcom st122hd4ku this 2 port video splitter from startechcom 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 1080p720p hdmi video resolution devices such as computers blu ray players and cable tv set top boxes even if you dont require 4k video toda