Add 4 x USB3.0 ports to your laptop, desktop or tablet USB-C connection. The USB-C female port can charge the host computer and supply power for the adapter at the same time. This is a USB-C to USB 3.0 four ports hub with a USB-C charging port.It works with both Macbooks, iPads and other USB-C supported devices. Input: USB-C Male x 1 / USB-C Female x 1 Output: USB 3.0 Female x 4