This is a wire-to-board interconnect: the housing terminates a cable harness on one end and mates to a PCB-mounted header on the other.
The 6-position count matches a 6-circuit harness — confirm your BOM line calls for exactly six wires before committing. The housing accepts crimp female socket terminals — you need to order the contacts separately. The Dynamic D-3100 uses a specific terminal (TE part numbers 1-178288-2 or 1-178288-3 depending on wire gauge); verify the terminal part against your wire size before placing the full order. The crimp barrel locks into the housing with an audible click — if you don't hear it, the terminal isn't seated and will push back out under vibration.