What this 2-position header does in a board layout
At 2 positions on a 0.100" pitch, this header occupies minimal board edge — roughly 0.200" of PCB real estate plus the shrouded body. The contact length on the mating side is 0.230" (5.84mm), and the post length below the board is 0.130" (3.30mm), which fits standard 1.6mm-thick PCBs with room for solder fillet. Compared to a 4-position sibling in the same series, this 2-position variant is the choice when only a single signal pair or power/sense pair is needed — no unused circuits, no wasted board space.