> " I needed this because both the computer and a screen were being sold with the cables cut a few centimeters after the connector (interestingly most sellers did that, instead of just unplugging the cables)."
Can't you just solder some extra wires onto the cut off bits, rather than having to try and find a compatible cable? They've left the connectors in, and that's the hard bit, the rest is just wires
From messing around with these units from various cars, which often need more enablement than these, sometimes it’s nice to just know your interpretation of the wiring diagrams isn’t at fault when chasing down “no lights at all” issues.