This is a Video Balun for Analog, CVI, TVI and AHD which allows you to connect a Camera to a DVR via Ethernet cable using the twisted pairs. This item is only sold in pairs. The way it works is that you connect one balun to the CVI, TVI or AHD DVR, the other is connected to the camera and in between is Ethernet cable. This allows you to transmit Video, Power, Data and Audio over the same cable.
Transmit a color video signal up to 300M/1000Feet and a full-motion B&W video signal up to 500M/1600Feet. Transmit a power signal up to 200M/600Feet.
BNC male with RJ45 jack and power connector. Works with 24v AC or 12v DC power.