Hi, I have purchase the STARTECH PEXUSB3S2 PCI Express card for my new system (i5) I built last year. I also purchased a Western Digital MyBook 3.0 external hard drive. It is USB 3.0 capable and comes with the 3.0 cable. I have install the latest drivers for the STARTECH PEXUSB3S2 and also flashed the external drive with the latest firmware. I am running Windows 7 x64 as well. Max transfer rate is 25MB/s. I am mostly transferring photos & documents. Any suggestions?