USB type-C is a new type of USB interface (USB interface also includes type-A and type-B), which comes out with the latest USB 3.1 standard. Issued by usb-if in August 2014, it is a brand-new interface developed by USB standardization organization to solve the problems of the long-term disunity of physical interface specifications and the one-way transmission of electric energy. It integrates charging, display, data transmission and other functions.

The biggest feature of type-C interface is that it supports two directions of plug-in and two directions of plug-in. It formally solves the worldwide problem of "USB can never be plugged in", and plug in the front and the back casually.