Designed for CCD camera(s) or wireless camera(s). You may connect extra battery pack(s) with this cable or use it for CCD camera installation. 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 centre-positive plug to connect easily to your camera. This is also a perfect usage for connecting CCTV cables to your power distribution system. With its wire, there is no need to worry about its quality and durability.