Bracketron High Power Dual USB Wall Charger provide fast-charging for multiple devices simultaneously, including tablets, eReaders, smartphones, GPS and MP3 players. Use your device's USB cable to charge. The AC wall adapter provides a 2.1A high output port and a 1A output standard port. 5V 3.1 Amp total output. Low-Profile design takes up just one AC outlet. Foldable AC plugs for easy storage and travel.