So: card inserted, screwed, clamped SATA power, current VIA XHCI host controller drivers are installed and BOOM! My front-USB3 connection runs via the internal, and the rear stopper 5 as well, and all at full speed from 100 to 150 megabytes. So far, no malfunctions. This thing is a creamy upgrade for each computer and I'm very satisfied with this purchase!
PS .: If times should someone ask again, no I'm not a CSL employee. If I find something cool, I also write a correspondingly enthusiastic review. I'm sorry for those who should have trouble with these cards.