Style is listed as Board to Board or Cable, meaning it can serve as a PCB header for a mating receptacle or as a wire-to-board plug depending on the mating half chosen.
Tin is a durable, low-cost finish for applications with infrequent mating — expect roughly 50 cycles before fretting wear may increase contact resistance.
The 953440-3 is also 0.100" pitch but a 2-row, friction-lock automotive header with a mounting flange. Neither is a direct drop-in for this unshrouded single-row part.
