This is for a Apple Mac SE/30 60830 processor accelerator. Very rare! Might also work with the SE. I believe this card upgrades your SE/30 to 25 or 50 mhz, I can’t remember exactly what the speed was. It also has a math coprocessor onboard. MicroMac Inc. manufactured this card. $35 shipped
I can take a picture if needed also.
Thanks for the interest everyone, the card has been sold!