Features: DC5521 male to male power extension cable,for DC plug Size: 5.5mm x 2.1mm,outer diameter 5.5mm, inner diameter 2.1mm Convenient to use, and add an for extra power socket to the power supply to connect the for DC 0-12V supply equipments. Can be widely used in LED light bars, LED signs, CCTV surveillance cameras, automotive electrical appliances, automotive amplifiers, automotive wiring harnesses, circuit boards, etc. The wire is flexible and durable, environmentally friendly PVC for jacket, with a much longer service life. Specifications: Type: Male to Male for DC Cable Material: Plastic Weight: 20g Quantity: 1 Color: As Shown for DC Plug Size:5.5mmX2.1mm Length: approx 0.52m/20.47in/1.71ft Note: Due to the problems of lighting effects and shooting angles, there will be certain tolerances in the product, please understand. Please allow 0-2mm error due to manual measurment. This cable can only be used for power supply and does not support data transmission Package includes: 1X for DC Cable