It's for connecting external floppy drives.
At 04:32 PM 2/14/98 -0500, you wrote:
I just picked up two of these at a thrift shop, 2 floppies, cassette jack,
no hd. On the mounting plate of the floppy card is a female 37 contact 'D'
connector. Can any one tell me what this was for?
Regards
Charlie Fox