Power Extension Cable: 16.4 Feet / 5 meters 12V DC Power Extension Cable, long enough for you to keep you device at home or outside, even if it is far away from the plug. The cable is plug-and-play and well adaptive to various application scenarios like the surface and inside of walls, floors, etc. To Reach Longer Cable: It can be used as a DC extension cord when you find that your DC power supply cable is not long enough. You can connect more than two or three cables to reach longer than 8 meters. Premium OFC Cable: Tyumen DC Plug Power Adapter Extension Cable is made of high-strand count oxygen free copper conductors. 99.95% OXYGEN FREE COPPER wires, not copper clad aluminum. OFC provides maximum conductivity, durability and antioxidation to ensure the highest performance and reliability of the products. Applicable To: Suitable for LED light strip, CCTV security camera, Ip camera, DVR Standalone, Audio camera, monitors, lighting, printers, DVR, or anything that requires DC input and accept 12V 2.1mm x 5.5mm plug(Does not work with other size).