MITS 88-PMC8 8K PROM Board This board was often used to hold MITS 4K Basic. It could hold up
to 8K of 2708 EPROMS.
I cannot locate a manual about this card, but
here is a Brochure
and a
note about a DC/DC convereter apparently required for the board. If you would like
to share a manual .pdf file please let me know.