Walther Miller WM 0587
This page was last modified 18:51, 17 January 2021 by Mars2000you. Based on work by Rderooy and Gdx.


The Walther Miller WM 0587 is a standard expansion of 64kB sold in Spain. Product name is "Memory Miller".

There are some reports that the cartridge does not work and can even damage your MSX. As such we advise to avoid this cartridge. In any case, it is better to buy a Memory Mapper cartridge that initializes its pages itself at startup.


Memory Miller box
Memory Miller cartridge

Minimum System Requirements

  • MSX1 computer, one free slot cartridge