Atari Portfolio expansion port

MAME: 0.280 - Released: 2025-08-29T21:26:57 - Machines: 48893 - rom: 364836 - disk: 1378 - Lists: 731 - Software: 139884 - rom: 236863 - disk: 11396

machine AO ? name sourcefile sampleof isbios isdevice ismechanical runnable description year manufacturer cloneof romof MachineGenreId portfolio_expansion_slot devices/bus/pofo/exp.cpp   no yes no no Atari Portfolio expansion port         System / Device

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