16 channel HD Video balun adopt differential signal transmission with excellent anti-jamming ability, save project wire expenses, each a pair of twisted pair wire transmits one channel of video signal and one common Cat-5 unshielded twisted pair wire can simultaneously transmit four channels of video signal, Full-motion CCTV video at distances up to 330m when used with any passive UTP video transceiver and up to 1500m with any active UTP video receiver, No power required, Built-in transient suppression protection.