Masione 4 PACK 100ft Feet Video Audio Power BNC security camera extention Cable for CCTV Security Surveillance system with 2 RCA Male to BNC Female Connectors 100 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; BNC to RCA adapters