In addition to the alarm, the prototype also includes 6 shunt resistors for each 12V cable on the connector ... The post Someone made a PCB to prevent RTX 50-series connectors from melting ...

the parts are a couple of SMD ribbon cable connectors and some chips in what appear to be TQFP packages. [rahmanshaber] used FreeCAD to get the outline of each part from the 3D model of his PCB ...

You could choose to carefully make a cable ... connectors. This defines which side the connector expects the exposed pins to be on, relative to the board surface – ‘bottom’ is same side as ...