Yamaha SX-101
This page was last modified 15:09, 24 April 2019 by Rderooy. Based on work by Gdx and Mars2000you and others.


The Yamaha SX-101 Expansion box is an original slot expander designed to be placed underneath the monitor. It is meant to be used with the Yamaha SX-100 computer, but can also be used with the rebranded Victor HC-30, both of which have only one standard cartridge slot.

This slot expander adds a second standard cartridge slot and the special Yamaha Module Slot Connector, for use with for instance the SFG module.

The Yamaha SX-100 cartridge uses reserved pins for additional slot signals. If the SX-101 is used with another MSX computer, only one slot will be usable.

Official price: ¥26,800


Yamaha SX-101
Yamaha SX-101 underside
Yamaha SX-101 detail with SFG module
Yamaha SX-101 front
Yamaha SX-101 back
Yamaha SX-101 with SFG module