The Amphenol BERGSTIK II 87900-456HLF is a 56-position, dual-row unshrouded male header on a standard 0.100" (2.54 mm) pitch. It's a through-hole solder-terminated board-to-board interconnect — the kind you'd use to stack a mezzanine card or connect a parallel PCB. With all 56 positions loaded, this header matches a 56-circuit BOM line exactly.
The 0.100" (2.54 mm) pitch matches legacy BergStik and similar 0.100" receptacles.
