USB keyboard interface for 128D

[+OLD CS1]

I am setting my 128D up on my rack and I will need the keyboard in a location further away than the cable will allow. I could just use a DB25-DB25 extension (within tolerances,) but I would prefer to integrate the 128D into the rest of my system via USB. Right now I have my 4000D and Windows PC on a USB switcher.

 

I have seen the Keyrah which interfaces with PS/2, but is there or was there ever a USB variant to use a USB keyboard with the 128D?