The MIL-DTL-38999 Series I connectors feature up to 128 contacts within an insert, offering robust environmental sealing and a wide operating temperature range from -65 °C to 200 °C. Available in various shell sizes and insert arrangements, they include front wall mount, rear wall mount, and jam nut receptacles with RFI grounding plugs. Constructed with high-strength aluminum shells, these connectors are suitable for harsh environments and military applications. Plating options such as cadmium and nickel provide durability and corrosion resistance. Compliant with RoHS regulations, they ensure reliable performance in demanding conditions.