I'm still trying to understand this tablet running Android 2.2. It has an adapter to provide 2 usb sockets and a network port. The software includes ES File Explorer, and if I plug in a usb stick with Windows files on it, I can see the files. The tablet makes a noise to indicate that the usb is connected. I have purchased an A to A usb cable and have connected the tablet to a Windows 7 computer. There is no noise from the tablet to indicate the connection has done anything, and the tablet doesn't appear in the PC's list of directories. The PC doesn't appear in ES File Explorer. I have checked the usb cable and it is wired pin 1 to 1, 2 to 2, 3 to 3 and 4 to 4. I have searched on the internet without finding cable details. I have followed the instruction book, which says I should get a notification with usb connections, but have never seen any notification. Is there any guidance anywhere for this?