Combo Type C USB 3.1 High Speed 3 port USB 3.0 HUB with Memory Card reader for New Macbook Advances design keeps optimal speeds when using multiple USB devices simultaneously On/Off switch with power LED indicator for power status 3.1 Type C USB-C with USB 3.0 3 Port Hub & TF SD Card Reader Adapter Compatible with new Macbook and USB Powered (no external power or battery needed Connects to scanner, printer, digital camera, mouse, keyboard, flash drives and more