Joe, you could add a USB 3.0 card, but your drives would have to be 3.0 compatible as well. If you've had them for any time at all I'd doubt they are. Other than that, unless you have a high-speed firewire connection on your computer (and I'd not recommend adding one if you don't already have it, this technology is going by the wayside) and there's a firewire connection on the drive you could connect to that. Of course eSata is another fast connection, but it appears that USB 3.0 will probably supplant that as well. I do have an eSata port on my current computer and 2 2TB Toshiba drives with which I'm quite happy, but I wouldn't advise anyone install eSata just to get the drives. Probably your best bet is to get a USB 3.0 card and gradually (or not) replace your drives with 3.0 compatible models. Western Digital has some out now and I've always had good luck with WD drives.