I'm currently using the Startech USB2SataIDE to build new hdd's with FatX. I have the USB3SataIDE version, but it doesnt work with FatX. I don't know if it's because it uses an Innostor-IS611 chip, compared to the JMicron-JM20337 of the USB2 version, or something else. I've heard of people using USB3 with FatX and was curious if anyone here has had success. I average 27MB/s, just looking to do better.