Amiga-os-300-a1200.rom -
This specific ROM corresponds to , which was released in 1992 alongside the A1200 and A4000 models. It's important to note that the Amiga 1200 uses two physical ROM chips because of its 32-bit data bus. When these two chips are combined and saved as a single file, it becomes amiga-os-300-a1200.rom for digital emulation.
Purchasing physical 3.1 ROM chips (which replace the 3.0 chips) from reputable Amiga retailers. Amiga-os-300-a1200.rom