It uses the standard DE-9 shell layout — the same footprint that RS-232 serial ports and VGA connectors have used for decades. The 6A per-contact current rating gives it more headroom than a typical signal-only D-sub, so it can carry moderate power alongside data lines in the same shell.
The 9-position count and 2-row layout match shell size 1 (DE, E) — any PCB laid out for a D-sub with that shell size will accept this receptacle.
The unthreaded housing/shell flange means you secure it to the panel or bracket with screws and nuts, not a threaded lock post. The black polyester shell is keyed by the D-shape itself, so it only mates with the corresponding male plug in the correct orientation.
It is RoHS compliant. The base product number is 5207826, so alternate packaging options (tube vs bulk vs box) carry the same electrical specs.