Anker's Most Intelligent Multi-Device Fast Charging SystemPowerIQ™ 4.0With Dynamic Power DistributionCharge Up to 30 Mins FasterCompared to a charger with a fixed output of 45W + 20W.Real-Time Protection WithActiveShield™ 2.0Innovative Interlocking StructureUniversal CompatibilityData obtained via testing performed by Anker and an independent professional testing organization.Greener with GaNIf every household in the US used our GaNPrime™ products in place of non-GaNPrime™ products, theamount of power saved could be up to 796.39 million kWh per year. Data calculated by Anker based onstatistical information from EIA and FinancesOnline.Charge your Apple Watch first when charging multiple devices. If the watch charger is connected to the USB-A port without an Apple Watch connected, unplug and reconnect it before charging.Due to MacBook charging identification, it's normal to see a plug symbol in the battery icon when charging a MacBook with a third-party wall charger. Charging will revert to normal automatically after around one minute.