I don't know what it is, but if I was a betting man, I would say you're rocking an intel CPU? intel doesn't give USB 3.0 enough resources.. THAT or corsair's drivers aren't playing well with USB 3.0/1. Been using USB 2.0 since posting this and not ONE. SINGLE. PROBLEM. It's crazy. all the headaches for MONTHS trying to figure it out and it was as simple at plugging it in to 2.0. I'm glad this helped/ you figured it out? It's unclear if you tried 2.0 before seeing this post