2 layers176.5 × 85.1 mm

KiCad boards from 3 GitHub repositories tagged “expansion”, the most starred first; open any of them in PCBKit.


jeffqchen/CompaqS3VirgeGXVRAM
A VRAM Expansion Board for the Compaq S3 Virge GX & Matrox Mystique 220 Video Card

hkzlab/OtterX_Ram_Expansion
RAM Expansion for the OtterX (CommanderX16 compatible) computer