Evertech 12V DC 3 Amper (3000mA) Power Supply Adapter Plugs Devices, 12V AC DC Power Supply Charger UL Certified UL LISTED 12V DC 3 Amper (3000mA) Power Supply Adapter ( 5.5 mm x 2.1 mm ) (Regulated) For electronic devices, like CCTV Security Surveillance Camera Regulated output protects your electronic devices from over voltage damages, and increaselife of electronic circuits and products you are using with. This Power supply is UL and FCC certified and approved. Perfect for Security Camera Recorders, Led Strip & Lighting and for Security Cameras ( 4 camera can be supplied ) DC Jack Tip: 5.5 mm x 2.1 mm, Cable Lenght; 45" ( 114 cm )