A tough USB cable for outdoor use Fusion designed this 40" panel-mount USB connector cable for use on your boat, ATV, side-by-side, motorcycle, or personal watercraft. It features a waterproof cap on one end that can be closed to protect the USB port from dust and moisture when not in use. USB Extension Cable: The Fusion MS-CBUSBFM1 USB extension cable is fitted with a male USB-A connector on one end which plugs into the rear-panel USB port of your in-dash or bulkhead receiver. On the other end is a female USB-A connector and integrated flush-mount bracket which allows for discrete installation and connection of your portable USB audio device, like your Apple iPod/iPhone or Android smartphone/tablet. Integrated Flush-Mount Bracket: The Fusion MS-CBUSBFM1 USB extension cable's integrated flush-mount bracket requires a 0.75" cut-out. A threaded nut tightens and secures the USB extension cable into place in the dash or bulkhead. A rubber gasket provides an airtight, watertight fit. Protective Cap: There is a screw-on protective cap to keep dust and moisture out of the the USB-A connector port when not in use. Cable Length: The cable is 40" total in length.