512Ke, Plus, Mac II, SE
Apple 661-0345. Internal 800K disk drive for the 512Ke, Plus, Macintosh II, and early SE. Later SE's used the 1.4mb SuperDrive.
All are Sony MP-F51W (MFD-51W). Available are "red label" or a "black label" on the side of the drive, they are completely interchangeable. All have been cleaned and greased. Tested to format, read and write. You can see some components changed in the last photo - black label on the left and red on the right.