MIL-DTL-38999 Series I connectors feature up to 128 contacts in an insert, designed for harsh environments with operating temperatures ranging from -65 °C to 200 °C. Available in various shell sizes and insert arrangements, these connectors offer front wall mount, rear wall mount, and jam nut receptacles, along with RFI grounding plugs. Constructed with high-strength aluminum shells, they come in plating options such as cadmium and nickel, ensuring durability. With RoHS-certified cadmium-free finishes, these environmentally sealed connectors are ideal for military and industrial applications requiring reliable performance in challenging conditions.