Baitaihem 6 PAIRS (12 Pcs) Mini CCTV BNC Video Balun 6 PAIRS (12 pcs.) Mini CCTV BNC Video Balun.Easy installation, using the standard UTP cable system Male BNC allows connection directly to the camera or DVR Lower budget, the price of CAT 5 cable is much less than coaxial cable Using UTP cable (CAT 5, RJ45) to transmit video, audio signal instead of coaxial Utilize existing wiring. Already have structured cabling systems? Simply connect a balun at each end of the cable run to transmit your signal.