i will be charging the machine in one room, and syncing on a daily basis in another. i dont want to have to disconnect the charging cable all the time and relocate it because itll be placed down behind a cabinet in a very awkward spot. so, where can i get a spare cable that i can connect to my pc? (i saw one advertised on amazon, but it was a mini-usb cable and im pretty certain that the tablet doesnt have a usb port on it. - so that cable is useless to me) im just getting the normal transformer without the keyboard dock.