All-in-One Charger Adapter Allows You to Charge up to 4 Devices at the Same TimeThis portable charger expansion hub attaches to the 61W or 87W AC wall charger that came with your Apple MacBook Pro to expand the number of charging ports from one to four. A white LED indicates sufficient charging power is available for your devices.Connect Your Devices to a USB-C Port and 3 USB-A Ports for Pure ChargingThe USB-C PD 3.0 port produces a maximum power output up to 20V 2.25A (45W). A USB-A Quick Charge 3.0 port offers charging speeds up to four times faster than conventional USB wall chargers for compatible devices. The remaining two USB-A BC 1.2 ports supply up to 5V 2.4A for charging. All four ports can be utilized simultaneously to keep your MacBook, Chromebook, smartphones and tablets ready to use.Dedicated to Keeping Your Expensive Gadgets SafeThe U280-A04-A3C1 protects your connected devices against overcharging, overheating, overvoltage and short circuits. The unit’s non-slip grip padding provides a secure connection to the power adapter. It is colored white and molded to integrate perfectly with the Apple charger and help you reduce unsightly cable clutter.