The 1-1658527-2 is a 40-position, 622 series female socket connector designed for wire-to-board ribbon cable connections. This connector features a .100 x .100 inch center grid and is part of the 622 series, which utilizes beryllium copper contacts with gold plating for reliable mating. The housing is a blue, glass-filled thermoplastic rated UL 94V-0. It is designed for military and center polarization and accepts 26-28 AWG solid or stranded PVC insulated ribbon cable, making it suitable for mating with universal and low-profile pin headers in various electronic equipment.