He says the USB is 2.0.

Also, in some (SOME) defense of the temorary missing manual. Ketron probably were making changes up to recently, so the manual can not be finalized until they cast the function in cement. Tech writers needed some time to finish after the engineers were done...and a manual has a certain lead time to publish (PDF sooner).

So do you hold the keyboard until the manual is done...no, you release it and let folks start enjoying...with the manual to follow soon (we hope. very soon).

Especially if you need some income to start to pay for all that development!

One opinion anyways...
Lee