The floppy drives in the X68000 are just regular PC drives with extra features. In fact, on the PRO they share the same part numbers with their PC counterparts (It's a TEAC drive). If you can live without soft-eject and computer-controlled blinking lights, you can easily connect a normal PC drive to the X68000. Simply follow this connection diagram, and you're done!
|* odd numbered pins only|
This information taken from Backup Technique magazine, Dec. 1990