The USB 3.0 hub helps expanding the USB port of PC from 1 to 4, greatly protect the USB port from frequently plug and unplug. With a 6.0 Inch cable, easily connect up to 4 USB devices to your computer, eg. external hard drives, USB sticks, mouse, keyboard, USB headset, etc. Type-C input interface can only charge when linked to PD adapter. Now more and more devices and the newest Mac Pro support Power Delivery(PD). With power delivery, a single USB-C port can give you Blazing-fast charging speed experience. Perfectly match the MacBook Pro.