1. Mainly to solve the problem of the New Macbook Air 12-inch interface being occupied, other access/charging cannot be performed, that is, the USB Type-C port and the USB 3.0 port can be used for charging and data transmission at the same time, which is perfectly compatible with dual systems,  2.USB 3.1 Type-C to four-port 3.0 HUB cable/Apple notebook Macbook Air 12-inch USB 3.1 HUB hub OTG function, 3.1 ports can be plugged in,    Product Features:  1. Input terminal interface: adopt the latest USB3.1 Type-C interface,  2.USB3.1 Type -C interface is about 8.25*2.4mm,  3.USB3.1 Type-C interface contains 24pin terminal, supports forward and reverse plug,  4. The data transfer rate can reach USB 3.1 10Gbps,  5. Ultra-thin design, mini size,  6. Output interface: four-port USB 3.0 HUB hub,    Specification:  Color: Silver,  Product weight: 50g,  Product size: 140MMx75MMx10MM,  Appearance: aluminum alloy shell,  Product Application: Widely used in: (Widely used in the connection of the signal source of the four-port USB3.0 mobile hard disk/mobile phone/U disk interface from the Apple Notebook Macbook Air 12-inch USB3.1 output terminal, with OTG function, high-speed output USB 3.0 speed),    Package Includes:  1 * USB-C HUB Docking Station,