A friend of mine has been working on some hardware for the Amiga lately, this is a Rom Switcher for the A500 he left here for me to play around with.
This will only work on an A500, it has 1.2, 1.3, 2.x and 3.1 roms on board (you can breake the card in 2 if you only need 2 of them). You choose ROM on boot

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