Features: 1. for DC 12V power adapter extension cable, for 5.5x2.1mm connector product use. Only suitable for weak current equipment, and the power is not more than 75W. 2. Compatibility: for various projectors, monitor, laptop, CCTV camera, TV box, blood pressure monitor, router, credit card machine, accordion, digital scale, and etc. 3. All copper wires, male-to-female interface extension, so that your equipment is no longer restricted by the length of the power cord, and can be placed freely. 4. Premium for raw meterial, makes it safter to use electricity. High toughness, high temperature resistance, and antifreeze. 5. 5 sizes to choose. 1m(3.3ft)/2m(6.6ft)/for 3m(10ft)/5m(16ft)/10m(33ft). Specifications: Material: PVC, Copper(11/0.15 oxygen-free copper) Color: Black Size(approx): 1m(3.3ft)/2m(6.6ft)/for 3m(10ft)/5m(16ft)/10m(33ft) Power Plug Outer Diameter: 5.5mm/0.22in, Inner Diameter: 2.1mm/0.08in Wire Outer Diameter: 3.5mm/0.14in Input Interface: DC5.5 female Output Interface: DC5.5 male Weight: 1m-Approx.25g 2m-Approx.43g 3m-Approx.62g 5m-Approx.100g 10m-Approx.200g Note: 1.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1 Piece Extension Cable