Casio QD-7
This page was last modified 21:40, 17 January 2021 by Mars2000you. Based on work by Rderooy and Gdx.


The QD-7 is a Quick Disk Drive with interface to be inserted in a cartridge slot. The drive comes from Mitsumi Electric Corporation that developed and sold its QD drives only as OEM (original equipment manufacturer).

The interface has its own 2kB SRAM and a 8kB ROM with version 1.1 of QuickDisk BASIC.

The QD-7 was sold in Japan. The package includes the AC adapter ADP-4101.

This device was also sold under other brands:


Casio QD-7
Casio QD-7 box and content
QD-7 with box, drive & AC adapter
Casio QD-7 PCB of drive
Casio QD-7 PCB of interface
Casio QD-7 label