It carries three rows at a 0.240" (6.10 mm) pitch, which gives enough spacing for 14-20 AWG power or signal circuits without crowding the panel cutout.
The housing accepts standard MATE-N-LOK pin contacts (sold as loose pieces or reeled for semi-auto crimp tooling). The integral latch lock snaps into the matching plug header and holds under vibration; it's not a screw-lock, but for a 9-circuit power interconnect it keeps the pair mated without extra hardware. Three rows at 6.10 mm row spacing means the connector body is wider than a 2-row equivalent — check your panel cutout or mating header footprint before committing.