Description

This rare MSX2 computer without MSX logo was designed specifically for Factory Automation to control robotic arms and other kind of machinery. It was aimed at the Japanese market.

The design is somewhat unusual with a ruggid white box including

two locations for vertical floppy disk drives
three vertical cartridge slots allowing useful extensions such as RAMdisks for timing critical operations or control sensors
a RS-232C interface

This machine is provided with a mouse and a keyboard, that is the same as for the NTT Captain Multi-Station as it has also the KPC (Kobe Port Captain) logo.

Several devices, components and extensions were available for this professional computer:

MX30A - internal 2DD floppy disk drive - ¥38,000
MX30B - internal 2DD/HD floppy disk drive (with built-in MSX-DOS 2) - ¥52,000
MX-400 - replacement keyboard - ¥11,000
MX-200 - Z80 STD bus motherboard (10 slots) - ¥19,000
MX-201 - MSX bus motherboard (3 slots) - ¥8,500
MX-35 - SRAM cartridge - 2 versions: 1MB and 500kB

Brand	Daisen Sangyo
Model	MX-2021
Year	1988
Region	Japan
Launch price	¥89,000
RAM	128kB
VRAM	128kB
Media	MSX cartridges, 2DD/HD floppy disks
Video	Yamaha V9938
Audio	PSG (YM2149 integrated in MSX-Engine S1985)
Chipset	Yamaha S1985
Keyboard layout	QWERTY/JIS
Extras	reset button, third cartridge slot, RS-232C interface, location for two 720kB/1440kB 3.5" floppy disk drives, firmware
Emulation	ROM dump needed. See this thread for details