9-146250-0 is an AMPMODU double-row vertical header with board retention tails designed for the AMPMODU .025 [0.64] square interconnection system. This 80-position header features a centerline spacing of 0.125 inch [3.18 mm], a mate dimension (D) of 0.318 inch [8.08 mm], and a post height (E) of 0.200 inch [5.08 mm]. The header is manufactured with plating options and is available with solder tails or board retention tails for secure PCB mounting. The product is RoHS compliant and designed for reliable interconnection in applications requiring high-density, multi-row connector solutions with breakaway capability.