PSXJunky -
This WILL work as an external reader with ANY mobo, as long as you are running XP or Win2K. I have XP pro and was using it externally because I was too lazy to open up my case. Now, I have it mounter internally, but I have it plugged into the same USB port. It has to plug into a USB port, not into the USB header on your mobo. Anyway, it works.
BTW, I have an MSI mobo, not a Biostar.