Amiga 4 Player adapter released as open source hardware. Posted on October 14, 2020 by Carsten Jensen Amiga 4 Player adapter released as open source hardware. Available on github. Related
I built one earlier this year, used left over male plugs from joystick extension cords a DSUB-connector an a plain DSUB-shell.
Having a PCB and case made works as well I guess. 😉
Several commercial products are (were) using cables, like yours. I just found it much easier to solder on a pcb than wires 🙂
Definitely easier to solder, stripping cables is no fun. 😉