I also use a HD24 here, with the HDTools software and a ViPower Swaprack caddy system. I bought the usb version VP-1028LSF. Mounts right in your computer bay and comes with a short usb cable to plug into a usb port on the back of your computer. I think it was $50 shipped, but well worth it. Works great! Fast transfer. Quick swapping without unplugging anything. You should be able to buy it right from ViPower, I did just a couple months ago.