12 circuits at 0.100-inch pitch — the board footprint and per-contact current ceiling
Unshrouded design means the square male pins are exposed after mating, which suits board-to-board or cable connections where the mating half provides its own shroud or where pin access is needed for probing or stacking.
Gold mating finish — 30 µinch for repeated connect duty
The post side gets a gold flash — sufficient for solder wetting and corrosion resistance at the board joint.
Peer comparison: 86479-4 vs 1379030-3
The 86479-4 is unshrouded with gold mating finish — a better fit for applications needing higher cycle life and no locking feature.
