Detail specification for two part connectors for printed boards for high number of contacts with basic grid of 2,54mm (0,1 in) on 3 or 4 rows.Common mounting features: - 165 up to 459 contacts for the 3 rows type- 120 up to 684 contacts for the 4 rows typeFixed connector: with male contactsFree connector: with female contactsTerminations : solder wrap, press fitAccessories: Guides and polarization key