The Amphenol FCI 68405-144HLF is a 44-position, 2-row unshrouded header from the BERGSTIK II series. It's a board-to-board interconnect on a standard 0.100" (2.54 mm) pitch — the same footprint as legacy 0.1" grid layouts — with a right-angle through-hole termination for edge-mount or mezzanine-style stacking where the board edge is the constraint.
The 0.100" pitch is the bread-and-butter of prototype and production boards — it routes easily on two-layer designs and mates with standard 0.025" square-post receptacles. The right-angle orientation puts the pin row parallel to the board, so the mated connector sits flush with the edge; the 0.095" post length is sized for a standard 0.062" board with room for a solder fillet. The 110 V rating is a working voltage, not a dielectric withstanding voltage — for line-voltage isolation you'd need a shrouded header with greater creepage.