The 2842130-4 is an 8-position, dual-row breakaway header from the AMPMODU series, pitched at 2.00 mm between contacts and rows.
The mating contacts carry a gold finish at 3.94 µinch (0.100 µm) over copper alloy. That is a thin flash — enough to prevent oxidation during storage and first-mate, but not a heavy gold plate rated for thousands of cycles. For a header that sees occasional board-to-board reconnections during test or rework, this plating is adequate.
Unshrouded Breakaway — Board Layout Registration Matters
This is an unshrouded header — no plastic alignment wall around the pins. The mating receptacle must rely on its own polarization or the board layout to prevent misalignment. The breakaway construction means the 8-position strip can be snapped from a longer strip during manufacturing, but the part ships as a fixed 8-position tube.