MIL-DTL-38999 Series I connectors, designed for harsh environments, feature up to 128 contacts in an insert with front wall mount, rear wall mount, and jam nut receptacles. Operating between -65 °C and 200 °C, these connectors are environmentally sealed and meet military specifications. Utilizing M39029 rear release crimp contacts in various sizes, they offer reliable connectivity. With options for different shell sizes and insert arrangements, they come in high-strength aluminum shells with plating choices like cadmium and nickel. RoHS-certified finishes are available, making them ideal for diverse applications requiring durability and performance in challenging conditions.