I see only two 1-star reviews
“Had a lot of problems, including too much noise level. RME tech support was not responsive or helpful. Besides, I was not a fan of the interface design, so I returned it to Amazon and replaced it with amazing Roland UA-S10 Super UA which I love.”
“The item received, first of all, wasn’t even a pro. It was a 2 year old previous model.
So it was used, damaged, with screws loose, and no cables to attach it. Returned immediately.”
Looks like faulty products