I have recently purchased a WD My Book Essential 3TB, and it works fine with USB 2.0. I’ve used it with my Mac and with my PC, and have had no problems reading and writing to it.
However, I decided to take advantage of the 3.0 speed, so I bought a USB 3.0 to PCIe cardand installed it in my desktop. And downloading and installing the4 necessary drivers for the card, I plugged in my external drive. Unfortunately, I keep getting errors with it. Either Windows 7 (the OS I’m using) alerts me that the drive has malfunctioned, that the device can perform faster if plugged into a 3.0 port (which it already is) and that the device driver failed to install.
Sometimes the drive will appear, but it will be inaccessible, as Windows sees it as a RAW, unformatted disk. Any suggestions on getting my drive to work with the USB 3.0 ports would be most appreciated.