<pre> I found a couple of these surplus. They're external 5 1/4" floppy drives and appear to have a SCSI connector. Does anyone know what system they're for? Are they SCSI? What voltage and polarity is the external power supply? Any details appreciated. </pre> They are SCSI and with the appropriate software would allow one to read PC-format disks on a Mac. Not sure about the adapter, but I *think* one can still find the software at: ftp://ftp.dayna.com/Pub/Macintosh/DaynaFile/ A couple of notes: 1) They've been discontinued for quite a while, so I don't know how well it will work with newer OS releases. 2) Apparently, they equipped them with different types of drives as I've seen ones with 360K, 1.2MB, and even 1.44MB floppy drives. I have to confess that I wouldn't mind finding a cheap one to play with. Unfortunately, the ones I've seen always seem to be out of my range. <<<john>>>