2mb and 4mb memory mapper for msx2 and msx2+ computers with real z80 chip (c)2018 Andrey Koryakin

Internal mapper, the Z80 IC will be placed on the memory mapper pcb and the pcb in the Z80 IC socket.

Memory registers and back annotation are supported.
(c)2018 Andrey Koryakin

Comes with complete description, design files, EAGLE-8.2 project, Gerber files
PCB dimension 71.0 x 54.3

See here for the project description.