Intel Aboveboard MCA Microchannel memory expansion for MCA 286 (possibly
386) PS/2's with 2MB of 256K simms on it standard parity 30 pin simms, I
believe this may be capable of taking 1M simms, and possibly 4M simms, I
don't remember. was working when system was scrapped ~ 5 years ago
a 384K Ram card for PC's to take you 256k PC up to 640K, fully loaded with
64K drams. worked when it was pulled ~ 4 years ago
Microsoft PC Ramcard similar to above, but originally sold by Microsoft.