This Active Dock Holder will allow you to neatly integrate your navigation system with the interior of your vehicle. Your TomTom easily docks in/out of the Holder. In the back of the Holder there is a micro-USB port for connecting the included charging cable or the TomTom TMC cable purchased from TomTom. When you dock your TomTom you are fully connected without having to manually connect/disconnect your cable. The Holder angles 15 degrees for optimal viewing.