I now have a few docking station for my SATA drives that's hooked on to USB 3.0 PCI Express cards. I also have a laptop with 2 USB 3.0 ports. The straight up transfer speed is good, 86 mbps versus 20 mbps, my virtual PC now runs very well with USB drives. However, using those devices for file storage has not been a very good experience so far. With the old USB 2.0 drives, I could create multiple "move" instances between drives. The speed slows down, but I could initial some moves and leave the computer ......