Extend hdmi up to 165ft 50m over cat5e6 cabling with power over cable to receiverr r requires only a single power adapter that can be connected to either the transmitter or receiverr cost effective hdmi extension through non proprietary network cablingr clean professional installation using optional mounting hardware includedr r the st121shd50 hdmi over cat5ecat6 video extender kit lets you extend hdmi video and audio by up to 165 feet 50 meters over dual cat5e cables or 130 feet 4