I thought it said 117mhz, but I'd have to check to be sure.
Since I already have a couple SCSI Zip drives laying around, I'll probably just go with the SCSI adapter cable.
I found it quite interesting to see how much you can do with one of these... including wireless internet. The more I read about it, the more I realize that this was a truly great find.
EDIT: This just keeps getting better. It seems this one has something extra installed in what I guess is its expansion slot. The plug for it sticks out the back of the machine, behind the secret door with the other plugs, but it isn't labeled like the others are. I don't recognize the plug shape (narrow rectangle with a tab sticking out inside it), so I don't quite know what to make of it just yet.
I read that some of these machines had the option of having video or ethernet installed in its expansion slot. Could that be what this mystery port is on this one? Some sort of aftermarket (or maybe built-to-order) option? If I had to guess, I'd say some sort of dongle plugs into it, giving me one or the other. I guess I'll have to nose around the machine more to find out for sure.