The Amphenol BERGSTIK II 87900-134HLF is a 34-position, dual-row unshrouded male header on the standard 0.100" (2.54 mm) pitch. This is the full-populated version — all 34 positions are loaded, arranged as 17 per row with a 0.100" row spacing. The square pins are phosphor bronze with a 30.0 µ" (0.76 µm) gold finish on the mating surface, rated for 5 A per contact at 110 V. The through-hole solder tails are 0.120" (3.05 mm) long, and the overall contact length is 0.940" (23.88 mm). The housing is black UL94 V-0 nylon, unshrouded, with a push-pull fastening style.
The 0.100" pitch and 0.100" row spacing are the legacy DIP footprint standard — this header drops into a 0.100" grid of plated through-holes, which means the board layout is straightforward if you have a 34-pin dual-row footprint.