What is included: 10 x 5.5 mm x 2.1 mm Black Tip DC Male End Jack Power Cable With Lead End Pigtail Features: DC Jack tip: 5.5 mm (outside dimension) x 2.1 mm (inside dimension) Pigtail Cable Length: 12 cm (5") POWER JACK CONNECTOR FOR COAXIAL WIRE, IDEAL FOR VIDEO SURVEILLANCE CAMERA INSTALLATIONS.