The st121hdt4p hdmireg over cat5e6 video extender kit lets you extend hdmi video and audio by up to 330 feet 100 meters over a single cat5e6 cable for added versatility both the extender and receiver can be powered by the same single power source using power over cable poc this versatile hdmi extender also allows you to extend infrared for an ir remote control and 2 ethernet lan connections over the same cat5e6 cable with support for high definition resolutions of up to 1920x1080