Detail :
Advanced Charging Technology exclusive to Anker, PowerIQ and VoltageBoost combine to ensure the fastest possible charge, whatever device you haveUltra Powerful4 ports pump out 40 watts of power, enabling multi-device charging at the same time.Multi Protect Safety SystemSurge protection, temperature control and more advanced safety features keep you and your devices safe.Super CompactAs small and light as a MacBook Air power adapter, the Anker PowerPort 4 is one of the most compact multi-port USB chargers on the market.