DC Power Input - The G4200S includes a DC charger so your device has a continuous power source whenever it is docked. You may also purchase our hardwire cable separately, which will allow you to connect the cradle directly to your vehicle's electrical system, bypassing the need for the included DC charger. DC Power Output - The G4200S includes a DC output port that can be used for powering other devices without having to use an additional power adapter, with the use of an appropriate adapter cable.