LP&reg; Type-C to USB Adapter,Double USB for Smart Phone portable kit MP3 MP4 video,Macbook NokiaN1 and Other Supported Devices Type C special interface for new MacBook ,NokinN1 and Letv and other new device While supporting Two USB device access to read and write and control Maximum transmission speed up to 480Mbps Plug and play without power supply USB equipment is essentials on running type-c interface