MIL-DTL-38999 Series I connectors feature up to 128 contacts in an insert, designed for harsh environments with an 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, as well as RFI grounding plugs. Constructed with high-strength aluminum shells, these connectors offer options for plating such as gold, electroless nickel, and anodized aluminum. With RoHS-certified finishes available, they ensure reliable performance in military-grade applications.