Notebook Type-C HUB 4-port USB Deconcentrate Aluminum Alloy Multi-port USB HUB Type C Docking StationProduct information: Interface: USB 3. 1 [Product introduction]] It mainly solves the problem that when the New Macbook Air 12 inch interface is occupied, other access charging cannot be performed, that is, the USB Type C port and USB 2. 0 port can be used for charging and data transmission simultaneously, compatible with dual systems! USB 3. 1 Type C to four ports 2. 0 hub cable Apple notebook Macbook Air 12 inch USB 3. 1 hub concentrator OTG