Excellent Solution For Usb Port Expansion. Usb3.0 Superspeed Data Transfer (5Gbps), Backward Compatible With Usb2.0/1.1. With An Optional Power Port (Usb-C) Up To 10W 5V/2A. By Connecting To An External Power Supply, Can Supply Power To Peripheral Devices. Designed And Manufactured With Bc1.2 Charging Technology. Plug And Play, Without Complicated Driver Installation.