Some report saying it works over usb 2, but I wouldn't rely on it.
If it does work it doesn't impact in age quality per say, but you might get wobble in the tracking, which can be very disconcerting.
Best solution is to get one of the recommended cards.
I too got one that was throwing errors in the sensors but fine with the had , but after a moving the PC to a different room. For some reason it now working excellently with one of them and the hmd.
I also have an I ate inateck card somewhere but since I don't have Asmedia controllers I keep it in backup.