ADD USB-C INTERFACE DESIGN - (Not Compatible with MagSafe wireless charger.)This adapter is designed to add a USB Type C female port to an old Type-A laptop or PC, connecting a USB Type-C cable, a USB Type-C hub, and a USB Type-C peripheral.NOTE: It will NOT support vidoe signal transmission.Not compatible with Apple mac laptop Charger. SUPER SPEED- USB 3.0 Type C data and charging cable, standard identification, speed of data sync up to 5Gbps.(NOTE:CAN NOT output video,USB Functionality ONLY. The adapter CANNOT send HDMI , VGA or other audio & video signal.) SUFFICIENT EXTENSION LENGTH - Its humanized design of sufficient length makes it more convenient and more comfortable for you to play games, watch videos, and read e-books while charging. LASTEST STYLE USB 3.0 TYPE C - USB-C port is half the width and one-third the height of a standard USB-A connector (slightly larger compared to Lightning or Micro-USB ports). REVERSIBLE - Plug and work.USB-C's user-friendly design lets you insert the connector the right way, every time.