Retrobit – Kartridże, akcesoria i płytki do Commodore 64, ZX Spectrum, Atari | Polska produkcja
A PCB that changes the pin layout to allow using a joystick from Commodore/ZX Spectrum/Atari with ZX Spectrum +2/+2A/+2B/+3.
Details about the pin layout can be found at the following link:
https://speccy.pl/wiki/index.php?title=Joystick_sinclair
