Cube U30GT-2, 10.1 Tablet , Jellybean 4.2.2, rooted. Hi I have searched and tried to resolve this for myself before asking. This is my first Android Tablet. One of the first things I did was connect a mouse and keyboard individually via the micro usb dock on the tablet using an OTG cable, both the mouse and keyboard work. As I wanted to use them together I first used a non-powered 4 x USB hub. While the small led light lit on the USB hub, anything connected to it would not work. I then purchased a powered 4 x USB hub, thinking this would resolve the issue. I connected the mouse and keyboard the same way using the OTC cable but with no success, I can't connect and use a mouse and keyboard together using the powered USB hub. What am I doing wrong??