The Amphenol FCI 86837-464HLF is a 64-position unshrouded male pin header from the BERGSTIK® II series, arranged in two rows of 32 on the standard 0.100" (2.54 mm) pitch. It's the kind of header you reach for when you need a dense, unkeyed signal interconnect on a standard DIP footprint — think backplane breakouts, test fixture interfaces, or any parallel bus that needs 64 lines on a single connector.
The 0.100" (2.54 mm) pitch is the bread-and-butter grid for DIP packages and 0.025" square pin receptacles — if your board already routes to that spacing, this header drops in without a footprint change. The 64 positions (two rows of 32) fill a full 64-pin DIP pattern, which is a common density for parallel I/O or backplane signal distribution.