The unshrouded design leaves the square pins exposed, so you can probe them during bring-up or mate them with a shrouded receptacle that carries its own alignment walls.
Board footprint and termination
The post finish is 100 µinch tin (2.54 µm) — thick enough to solder reliably and resist oxidation during storage. The mating finish is 30 µinch gold (0.76 µm) over nickel, which keeps contact resistance stable across repeated mates.
