About this item C7H power cord compatible with 18V 1.67A 30W Adapter Not for dot adapter, NOT compatible with dot 15 W adapter or 21W devices The same size outer jacket as original cable - Fits your devices perfectly and firmly 10 feet (3 meters) longer charger extension cable - Enable you to put your devices anywhere that you want 20AWG UL listed wire with female-to-male DC barrel connector Dimensions: 6.73 x 3.66 x 1.06 inches