The Gemini Accelerators were VERY cool. Are there SIMM slots on the board? IIRC, the later '030 Geminis could address 32 MB of additional RAM as Virtual Memory on the SE and had a slot for the VideoCard/Panasonic 19" B&W/Grayscale TPD combo.

That was my first Big@$$_CRT_Love_Affair! I ran it on the used IIx I bought specifically to become my Rocket_LaunchPad.

I'm almost positive that I've got old tear-sheets from MacUser with specs, etc.