https://www.thomann.de/de/neut…rslt_usb+neutrik_182683_0
Just add a short USB A-->B Cable and you´re ready.
I think it should be the other way round because the Kemper has USB-B
So:
PC USBA -> USBB on Chassis front -> USBA on chassis back -> USBB on back of Kemper.
Or am I missing something here?