ZX81 Color interface Chroma 81

I own a ZX81 but I think I never heard of this color interface. It’s even supported by some emulators like ZEsarUX. Some games/programs are newly available in color. There’s also a documentation for own software. But maybe b&w is the real retro.

I found this by coincidence searching for a specific DIN 41612 connector. Surprisingly someone has this industrial connector on ZX81 cards (XBUS)


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