Dual device charging: no more fighting over who gets to charge, you’ll find the two QC 3.0 ports useful on every drive as they fast Charge two devices at a time Total 36W output: each Port’s output is 18W, delivering the same energizing current to efficiently charge two devices together without slowing down One for all: compatibility that exceeds expectations, power almost all USB-charged devices such as your smartphone, tablet & digital camera Comprehensive protection: technologically advanced to the core, completely guards against overheating, overcurrent, overvoltage & Short-circuit issues for a safe performance 30 Month warranty: get 18 months out of the box and extra 12 months by simply registering the Qi charger; comes with a lifetime of ravpower’s friendly customer service