Extend hdmi up to 100ft 30m over cat5e6 cabling with power over cable to receiver the st121shd30 hdmi over cat5ecat6 video extender kit lets you extend hdmi audiovideo and an ir remote control signal by up to 100 feet 30 meters over dual cat5e or cat6 cable for added versatility this hdmi extender kit is powered via the hdmi bus and does not require any additional power adapter with support for high definition resolutions of up to 1920x1080 1080p and the accompanying digital audi