Gold Mating Interface — 30 µinch for Field-Service Duty
The 76342-318LF: 30.0 µinch (0.76 µm) gold over nickel on the mating face — rated for repeated disconnect cycles without the fretting corrosion you'd see on tin. In a telecom or industrial panel where the board pair is swapped quarterly, that gold layer buys decades of reliable contact.
