Hitachi MB-H21 1984 32kB Japanese MSX1 with built in software and speed control (which is not emulated). MSX jp 16000 jp_ansi false false true false TMS9118 AY8910 21000 false mb-h21_basic-bios1.rom 302afb5d8be26c758309ca3df611ae69cced2821 FF00 mb-h21_firmware.rom a2665c7c4b95171ace72c66d9bae4309329eb0ac