It is an Apple 5.25 drive. It's a bit dirty, so I'll try to clean it up and see if I can clean the "read" head(s). I'm thinking that I might be able to find an II share ware program on the net that I could download and put on a 3.5 inch floppy drive. Can I put an Apple II program on a Mac formatted floppy and have the internal drive read the program? Thanks, Pete