The 5499160-9: The through-hole solder tails extend 0.110" (2.79 mm) below the board surface, which is a standard length for single-sided soldering on 1.6 mm thick boards. The 40-position, dual-row layout with all positions loaded gives you a full-width I/O bank.
Contact Rating and Mating Cycle Life
The tin-plated solder posts (100 µinch thickness) are compatible with standard leaded and lead-free soldering processes.
Mating and Retention Hardware
A keying slot and mounting flange are included on the housing — the keying slot prevents mismating with non-keyed receptacles, and the mounting flange can be used for additional mechanical fastening to the PCB or panel.