First things first, I generally like what Behringer do, providing good solutions for decent prices, allowing mucisians, gearheads, and techs to experiment on a low risk entry fee.
There are some occasional cracks in that appearance though, this is one of those times.
Thomann tech and RMA people generally did a good job, some improvements would be appreciated, such as more information transperancy.
Bought this to solve a specific problem, has everything I need in 1U instead of 3U, sound and feelwise this is a good product, and if you run it analog, full recommendation.
If you specifically need this for the USB ADDA converter/soundcard functionality, prepare for some headaches.
In short, had to send this all the way back for service techs to look at it due to no USB connection at all, they did tests that were not disclosed clearly, hence the result they got, I could not replicate, and my issue persisted.
My conclusion, looking into hardware monitor, eventviewer and DAW applications, is that this is not a USB class compliant product.
Cost cutting for no good reason, or a pointless driver lockdown policy.
In my case the only way this hardware agreed to USB handshake with the workstation was polar opposite of what tech support recommended as troubleshooting.
I have to run this through hubs, USB 2 to 3 conversions and an extension lead for proper adverticed functionality.
Direct motherboard connections fail to work on all ports.
Found a similiar case on Reddit with no clear end result, MusicTribe quided the discussion onto their closed platform.