2 layers19.6 × 41.5 mm

Open2327RomAdapter
SukkoPera/Open2327RomAdapter
Open Hardware 2364-27xxx (E)EPROM Adapter PCB
10 parts85
KiCad boards from 1 GitHub repository tagged “kernal-rom”, the most starred first; open any of them in PCBKit.

SukkoPera/Open2327RomAdapter
Open Hardware 2364-27xxx (E)EPROM Adapter PCB