About this item 4 Pin 6.5 ft cable. If the rear camera cable that comes with your dash cam kit is too short, this backup camera extension cord is a great accessory for dash cam mirror cam backup camera, helping you to complete the installation successfully. Please choose the appropriate rear view camera extension wire from the available connector types: 4 Pin male to female, 5 Pin male to female, 2.5mm end male to female. Each type has different lengths: 6.5ft, 10ft, 16.5ft. Our extension wires adopt a thick pure copper core, diameter 3.5mm. After backup camera cable extension, if you experience voltage drop or screen issues such as stripes or flickering, please avoid using thin reverse camera cables. Our extender cable is thicker, providing better stability. The 2.5mm Male to Female extension cord is universal for 4pin/5pin rear cameras of dash cam and mirror cam. Dimensions: 14.68 x 5.83 x 0.35 inches.