First of all i wasn't sure to post this on bug reporting or a feature request.
Is there a hardware limitation on why these two ports don't work exactly the same?
At first it would seem like they do, but windows recognize them as different devices, with onboard USB you lose the volume control from windows volume slider like you have on the EX-UH.
A client reported us this and I thought it was a simple solution as setting the default audio output on windows, but its not. This subtle volume control is the only difference I've found so far, could this be a drivers fault or a hardware limitation?