32 PAIRS (64 Pcs.) Mini CCTV BNC Video Balun 64 (32 Pack of 2) Mini CCTV BNC Video Balun Easy installation, using the standard UTP cable system 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