Knuckle, I never heard that there is any difference whether you connect ARC USB to UFX+ directly or via PC. Can you pls cite the manual where you think you found this information?
I think the advantages are simply
- allows for shorter cable, less cabling efforts
just plug it to the device which is closer to
your mouse hand
- standard USB interface vs customized
- easier cable replacement
- backward compatibility for a lot of devices as to make this happen everything seems only to be about the communication between ARC USB towards TM FX on the PC.
Also it might be easier and more straightforward for RMEs design of driver and devices as USB I/O is already or can be implemented into FPGA of future products.
Also the communication between ARC USB on UFX+/II to PC might be easier to implement as the USB traffic of the ARC USB might only be passed through the already established USB connection. And in the case of thunderbold maybe easy to implement as TB is desiged to kind of "tunnel" different driver traffic like already seen in the case of firewire which needs only an adapter.
BR Ramses - UFX III, 12Mic, XTC, ADI-2 Pro FS R BE, RayDAT, X10SRi-F, E5-1680v4, Win10Pro22H2, Cub14