MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts in an insert. With environmental sealing and a wide operating temperature range of -65°C to 200°C, they ensure reliable performance in demanding conditions. Available in various receptacle types such as front wall mount and jam nut, as well as plug options including straight and RFI grounding, they offer versatility for different applications. Compliant with military specification MIL-DTL-38999 II, these connectors are made of aluminum with plating options like electroless nickel and cadmium olive drab. Suitable for use in environments requiring high durability, they provide secure and efficient connectivity.