The Yamaha CX7M/128 music computer is the successor of the CX5M line of MSX computers, now featuring one extra cartridge slot and full MSX2 standard compatibility, aimed at the Japanese music production market (hence the Japanese keybaord). As the name implies, it has 128kB of RAM and 128kB of VRAM, and features a pre-installed SFG05 module.
It was also sold under the YIS brand as the YIS604/128 without the music capabilities or as the CX7/128 without the SFG05 module.
MSX BASIC v2.0
3.58 MHz Zilog Z80 CPU
128 kb RAM, 128 kb VRAM, 32 kb ROM
YM2149 integrated in MSX-Engine S3527
SFG-05: FM tone generator (4 operators, 8 algorithms)
Simultaneous note output
Polyphonic: 8 notes
Monophonic: 1 note
Connection terminals and interfaces
2 cartridge slots
Joystick port 1, Joystick port 2
Video RF output, video composite output, RGB output