In December 2013, the USB 3 promotion team has announced the rendering of the next generation USB Type-C connector. Then it was ready for mass production in August 2014. The new version of the interface is to highlight the transmission speed faster and more slim design (up to 10Gbps) and more powerful power transmission (up to 100W). The biggest feature of Type-C double faced plug-in interface is to support USB interface double entry. It solves the worldwide problem of "USB is never inserted". At the same time, the USB data line that is used with it must be finer and more portable.