[ioman]

I have been using Kinesis Advantage keyboards for close to two decades now. The keyboard wells and the placement of the space, enter, delete, backspace, and modifier keys I find amazing. I haven't been able to find anything else nearly as good. So I keep using them even though they only have USB interfaces.

I've been using them so long I have a few lying around. I've gotten two set up as described by ruffrey. Oh. My. God. I've been typing for less than an hour on this new setup and already my shoulders feel way better.