8 Port Active Video Balun Receiver with adjustable controls for each Channel. This unit is rackmountable in a 1U space and uses 110V AC current for power. You can transmit CCTV Camera Video for 16 Channels upto 3,000ft using any passive balun transceiver, and you up to 8,000ft when used with any Active Video Balun Transmitter. Remember the great thing about video baluns is that you can use CAT5/6 cabling which is cheaper than coax to transmit video. Just make sure you have power near the cameras.