The 2-2106489-4: The 0.157" (4.00 mm) pitch is the same on both the cable and board side, so the wire spacing matches the PCB footprint straight through. The closed-end housing prevents the wire from overshooting the last contact position.
No crimp tool or loose terminal is needed; a simple press tool seats the wire. The specified wire gauge is 22 AWG; using a different gauge may not achieve reliable insulation displacement.
The board-side pitch is 0.157" (4.00 mm), matching the cable pitch. The through-hole right-angle mounting requires a row of four plated through-holes at that pitch, with the connector body sitting flush to the board edge. The natural (uncolored) housing is the standard finish.