Aektann
Well-known member
I’ve got a working Macintosh Portable with the strange modem card installed. The part number is 670-4267-A, Designed by Apple Computers in 1989. It has a standard RS-422 port outside. Looks like an early version of Apple ExpressModem. I tried to search by the part number with no success. Just curious what kind of modem it could be.