Board Fit and Signal Routing
The 3-826942-2: The unshrouded design gives you access to each pin for routing traces directly under the header, which helps when you're squeezing signals between the rows on a two-layer board.
Mates with any standard AMPMODU Mod II 0.100" pitch receptacle or socket strip — no special keying or latch, just push-pull engagement. For a wire-to-board connection, pair it with a crimp-socket housing; for board-to-board, use a matching female header or socket. Both halves are widely available and use the same 2.54mm grid.