USB 1.1 to 2.0 is not a driver update, no, it's hardware.
Unfortunately you're stuck with the slower speed on that machine.
I also meant to mention, mine didn't have a lock but did have security Torx screws (the Torx ones with a dot in the middle) which was difficult to open mainly because I'd never seen that kind of screw before.
As for finding the exact model, if there are no stickers at all on the case that you can use to ID it, your other options are to use something like Everest to get the details or to open it up and try to find a sticker inside.