USB A to C Adapter:This USB A to C adapter is designed for converting ordinary USB 3.0 female port on your PC/laptop to USB C female port to transfer data/files or connect your mouse, keyboard, Printer; -NOTE- It was not designed for charging when connect to laptop, NOT support vidoe signal transmission,it could not extend monitors. High Speed 1Gbps Transfer: This USB-C to USB 3.1 adapter support 1Gbps data transfer speed, which allows large files like photos or musics to be transferred in seconds, greatly improve efficiency. Plug and play, no any drivers needed. Universal Compatibility:USB A female plug into legacy devices with USB 3.0 port like laptop,PC,and connect to USB C peripherals like Logitech Streamcam, Thumb drives, card reader,etc.