Board-to-board receptacle with defined stack height
The 76341-407LF: It mates at a 11.04mm stack height, with a 0.275" (6.99mm) insulation height above the board.
The 11.04mm mated stacking height is the z-axis dimension between the two PCBs when the receptacle is mated with the matching Dubox header. The 0.275" (6.99mm) insulation height leaves clearance for routing under the body.