This is an "AS IS" sale as I have no way of testing this lovely old board. This card has oxidation on some soldered connections as well as pins, and I'm not sure that some component replacements won't be needed (like that blue battery pak) that someone more versed in electronics repair/refurbishment will need to address.
I had intended to build a old IBM 5150 with this card providing serial, game, and printer ports (along with another floppy interface), but never progressed from the parts collection phase. Is my procrastination your opportunity?!?