DC Jack, also known as a power jack, DC power jack, male jack, male plug, etc, is used to give external DC power to any device or board. It has a cylindrical miniature size. It is a perfect option to give direct external power to the board or any device. This product is known as CCTV Devices DC 5.5×2.1mm Male 2-Wire Lead Jack Power Cable Connector, 5.5×2.1mm Male to 30cm Cable, 5.5X2.1mm 12V DC Power Plug Male Jack Plug Cable, 5.5mm x 2.1mm DC Jack Connectors Power Extension Cable. Technical Specifications: Material: PVC Connector Type: 5.5mm X 2.1mm DC Power Jack: Male Supports maximum current: 3.5 A Voltage Rating: 3.3V To 24V Great for short-distance connection Simple & Professional appearance for cabling Easier for installation save time and money CCTV Camera Power Connection line Easy to use Cable Length: 6in Crocodile Clip: Red and Black Wire Colour: Red and Black Approx Weight: 15 gm Package Includes: 1 Piece– 5.5×2.1mm DC Jack Male Plug To Alligator Clip