1st Proximity sensor clip identification

It looks like the black 4mm clip for the proximity sensor (located just after it's opened) may have broke. Looking for details on how the sensors cable/clip functions or what the specific connector is called.

The parts are so small I am having trouble seeing them even under magnification. For instance..

Is the cable just pressed in at a 15 degree angle?
Is the boards connector 2 or 3 rows of pins?
Is the lower (smallest) finger on the side of the cable used for indexing somehow?
How should the clip be attached?
Is the connector a standard component?