UGREEn 20271 4-Port USB 2.0 OTG Hub - White
This usb2.0 OTG hub could extend a single usb port to 4 ports. Then you connect multiple usb drivers to your pc. In addition it allows you to connect 4 different usb devices such as usb flash mouse keyboards to the OTG enabled Android devices simultaneously. It let your tablet/ phone to be a portable pc when you connect a mouse and keyboard.