Hard Wired USB Panel Mounted Socket with direct to battery cable. Internal voltage regulator and integral resettable fuse. Includes waterproof screw on cap. Great for motorcycles, ATVs, boats, RVs and other powersport vehicles. Surface mounted USB. (Will not charge Samsung Galaxy Tabs as they use proprietary chargers.) Requires a .818 inches or 20.8mm Diameter panel cut out, with 1.96 inches or 50mm rear clearance. Maximum panel thickness .157 or 4mm. Powerlet socket requires .6875" hole. USB panel mount requires .818" hole. Therefore, it will not fit in a powerlet socket hole. Rated IP67. Cable length to USB socket approximately 4ft.