84-position Dubox receptacle
The 87606-342LF is the 84-circuit member of Amphenol ICC (FCI)'s Dubox board-to-board receptacle line.
Position count across the series
The 84 positions of the 87606-342LF are the highest count in the Dubox 87606 series — the pitch and row spacing (0.100" / 2.54mm both ways) are shared across the line, so the board footprint scales with position count.