The st121hdbte hdmireg over cat5e6 video extender kit lets you extend hdmi video and audio up to 230 feet 70 meters over a single cat5e6 cable for added versatility both the transmitter and receiver can be powered by the same single power source using power over cable poc with support for high definition resolutions of up to 1920x1080 and the accompanying digital audio this cost effective hd extender is a plug and play solution that can easily be installed using new or existing ethe