C2G/Cables to Go 41151 BNC Male to RJ45 Female Video Balun (Black) Run video up to 1,500 feet over UTP network cable with little visible degradation Extend video up to 1500 feet over standard network patch cables Converts between 75 and 100 cabling Supports CCTV video signals One input, such as a Security Camera, can connect to a "transmitting" video balun which connects to a "receiving" video balun, which distributes the signal to an output such as a Video Switch, VCR/DVR, or Monitor.