The MIL-DTL-38999 Series I connectors offer high-performance connectivity with up to 128 contacts securely housed in an environmentally sealed insert. Engineered for harsh environments, these connectors boast a wide operating temperature range from -65°C to 200°C. Featuring various mounting options including front wall mount, rear wall mount, and jam nut receptacles, they ensure versatile installation. Compliant with military specifications, these circular plugs are designed for durability and reliability. With a robust aluminum shell and multiple plating options available, including RoHS certified finishes, they guarantee long-lasting performance. Ideal for applications requiring rugged and dependable connectivity, these connectors are essential components in demanding environments.