Masione 4 Pack 100ft Security Camera Video Power Cable White Replacement Extension Wire Cord for CCTV DVR CCD Surveillance System with BNC to RCA Adaptor 100 feet 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 video signals and supply DC power for security camera For camera with DC power only; BNC to RCA adapters