I bought a portable keyboard for my Craig tablet. For some reason, it doesn't seem to work. When I plug it in, the tablet freezes, then reboots, and if I keep the keyboard plugged in, it never goes beyond the screen with the Android logo in the upper left.
I've tried plugging in my full-sized Dell keyboard to the tablet, and that works fine (although it seems to slow the tablet down, for some reason), so I don't think it's the USB port. (I've also tried thumb drives on it, and they've all worked fine.)
To test the keyboard itself, I plugged it into my Dell machine, and it worked fine there.