MIL-DTL-38999 Series I connectors are designed for rugged environments, featuring up to 128 contacts within an environmentally sealed insert. With an operating temperature range of -65 °C to 200 °C, these connectors are suitable for a wide range of applications. Available in various shell sizes and insert arrangements, they offer flexibility in design. The connectors come in high-strength aluminum shells with options for plating such as cadmium and nickel, ensuring durability. Ideal for military and aerospace use, they meet stringent standards for performance and reliability.