MIL-DTL-38999 Series I connectors are designed for rugged environments, featuring up to 128 contacts within an insert. With a wide operating temperature range of -65 °C to 200 °C, these connectors offer reliable performance in extreme conditions. Available in various shell sizes and insert arrangements, they come in aluminum shells with plating options such as cadmium and nickel for enhanced durability. The connectors, including front and rear wall mount receptacles, are MIL-DTL-38999 I compliant, ensuring high-quality standards for military and aerospace applications. RoHS certified finishes are also available, making them environmentally friendly options.