This conversion kit allows you to go from any BNC camera to an RJ12 connection. Whether you already have RJ12 cable ran and want to use a BNC camera or you just prefer REVO"s RJ12 cable, this conversion kit makes it simple and easy! Features: * BNC Coupler will connect our RJ12 security cameras to a BNC camera system * For use with your BNC cameras * Power supply sold separately What"s In The Box: * Revo RRJBNCCOUP-BR RJ12 to BNC Adapter Coupler with BNC Female to Female Barrel Connector