The BNC coax connector is one of the most widely used RF connectors today. It is very easy and convenient to use, and offers a very high level of performance. The BNC connector is used on test equipment for everything from oscilloscopes to audio generators, and power meters to function generators. In fact BNC connectors are used in applications where coaxial or screened cable is required, and particularly for RF applications. Male power ends dc cord w/ male plug 18awg / 2 wire, 18inch dc male 5.5Mm x 2.1Mm plug. Most dome- or bullet-style surveillance cameras come with a short power cable but need a patch cable to connect to a power supply. Connect your camera to the power supply easily with the male dc power pigtail, with a standard center-positive plug to connect easily to your camera. This is also a perfect usage for connecting cctv cables to your power distribution system. With it’s wire, there is no need to worry about it’s quality and durability.