The 4 Channel Transceiver Box. It converts 4 coax lines,
BNC Jacks, to a Screw Terminal Block and/or 1 RJ45 Jack.
Dimensions: 105mm x 55mm x 29mm (excluding connectors)

Features:

*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 
* Up to 1500m with any active UTP video receiver 
* No power required 
* Built-in transient suppression protection