Just as a quick update after a few month of use: it’s working for me on my asmedia usb 3.0 controller. FYI my motherboard is an Asus M5A99FX PRO.
The only problem is that when not in use (e.g. idle on desktop), the eyeX will disconnect (to reactivate it I have to unplug and replug it again). However when playing there are absolutely no problems for me with the controller.