Snes 1A3B mapper adapter
If you like modding Snes cartridges, then this may help you. The cartridge designator "1A3B" is the Snes designator for a "Lo map, 1 mask rom, 64k sram" pcb. The non-rev20 (NOT rev -20) versions of these carts can be converted to different a different mapper so that upto 4mB roms can be used (MUST HAVE A MASK ROM ADAPTER pcb). This is NOT a complete solution. This is just an easier way to convert the map decoder to a more versatile one. This video shows it's use. https://youtu.be/SP7Huby3jKg?si=29Ho5QSJfHkdQ7ar
Snes 1A3B mapper adapter
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