Masione 4 PACK black 150 Feet Audio Video Power Security Camera Cables with Free BNC RCA Connectors for CCTV Home Surveillance Cameras DVR System 150 feet audio video and power CCTV cable The black cable is made of pure copper and of good quality 2.1mm center positive power connection type Transmit audio video signals and supply DC power for security camera For camera with DC power only; Free BNC to RCA adapters