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 players and cable TV set-top boxes Even if you don&39;t require 4K video today the video splitter ensures you&39;ll be ready to take advantage of tomorrow&39;s display technology while still working with the devices you already have For a hassle-free setup you can power the HDMI splitter with the included USB cable or power adapter depending on which is most convenient for you Plus the splitter features a built-in HDMI source cable which lets you connect it directly to your HDMI source without the expense of additional cabling