The 3417-6040 is a 40-way 0.100 x 0.100-inch Wiremount Socket for 0.050-inch pitch cable, with gold-plated copper alloy contacts and IDC/IDT termination. This 3000 series socket is glass filled polyester (PBT) insulated, mates with 3M headers, plugs and pin strips for quick connect/disconnect capability. This wiremount socket has open end cover, military polarization and 40-contacts for plastic strain relief.