All three USB ports offer rapidly charging for smartphones, tablets and other devices. 6.3A total output. Each USB port has its own microchip that detects the device plugged into through USB PIN signals, which gives output at full power and full charging speed. Certified by RoHS, CE and FCC, high-quality and safe, with protections against over-heating, over-current and over-charging. Use your existing USB charging cables to charge most USB powered devices, soft LED confirms whether USB charger is properly connected
