Sequential Systems Q-100 Expansion Card

Good evening all,

I am looking for information on a Sequential Systems Q-100 Expansion Card.
I tried Google and got nowhere.
I know Sequential Systems made RAM cards and interface cards, but this card (with a daughter card and another via cable attached card) is up for auction on eBay and I do not want to bid on it without reading about it or knowing what I'm bidding on first.
No manual comes with it. It looks like a RAM Expansion, but I am not sure what the functions are of the daughter card and extra atached card are.

Anyone have a clue?

Any assistance would be appreciated.

Steven