Atari to Atari gabel.
I´m try it on my Falcon (CT60 not in but where power) and using two different Falcons. This is fully self-made model and there is two wires who goming in this gabel "motherboard", but they not goming in port where all other wires goming. They are maybe detachment in post.
I thing i better pay one good than try made this one working, made it wrong and burn something.