SW-Motech Double USB power port with universal plugUSB double charging socket with universal plug The high quality double charging port can be connected via a universal plug both to the cigarette lighter and via a vehicle electrical system socket. The Dual USB Charge Socket provides enough voltage at 2,100 mA per USB port to power even more sophisticated electronic devices such as tablet PCs. A double USB charger socket or charging cable with mini USB can also be used for charging smartphones