Cewaal 30M BNC RCA Cable Wire 100FT DC Video Power for CCTV Security System Camera DVR 1. The black cable is made of pure copper and of good quality 2. All-in-one video audio and power cable RCA audio & BNC video & 2.1mm power connectors 3. Plug and Play, Ready for camera with DC power only, Free BNC RCA connectors 4. The video audio power cable transmit video audio signal and supply DC power for CCTV security cameras 5. Each cable has pre-made BNC video connectors and 2.1mm center positive power plugs