The Amphenol 87900-466HLF is a 66-position unshrouded male pin header from the BERGSTIK® II series, built on the standard 0.100" (2.54 mm) pitch in a dual-row layout. The 66 circuits, all loaded, give you a dense signal path for a wide parallel bus or multiple ribbon cables in a single connector.
The through-hole termination with a 0.120" (3.05 mm) post length gives a solid solder joint into the PCB, and the 0.100" (2.54 mm) row spacing keeps the footprint compatible with standard perf-board layouts and prototyping grids. The overall contact length of 0.940" (23.88 mm) means the mated pair will stand about 0.720" (18.29 mm) above the board surface — check your enclosure height budget before laying out the board stack.