Thought I'd bring this up since I just took the leap to 10 (from 7) and in the process discovered a couple things. I love the GM5, hands down the best interfaces I've used but under windows 7, using more than one (i use 4), one or several would vanish periodically requiring it to be unplugged and plugged back in. Never found a reason and this was with the 1.1.1 drivers. With win10, I using the default drivers resulted in a naming problem where the name of the device was so long you could not differentiate which interface was which so I came looking and found that there is a 1.3.3 ploytec driver and that works perfectly under 10, no disappearing interface and the names are correct !