Product Description Blue Sea Systems 1044 – USB Extension Stereo in the cabin or E-box, but you want to keep your phone at the helm?  Extend any USB 2.0 connection with this IP68 weather resistant USB extension. Mounts in a standard 1 1/8″ hole, with 5ft of each to your device. Easy to install threaded shank can mount easily in panel thickness up to 1 1/2″. FAST Charge USB Specifications Value Mounting hole 1 1/8″ Tether Length 5ft USB 2.0 Parasitic Current Draw none