MIL-DTL-38999 Series I connectors feature up to 128 contacts in an environmentally sealed insert, designed for harsh environments. With an operating temperature range of -65 °C to 200 °C, these connectors come in various configurations including front wall mount, rear wall mount, and jam nut receptacles. They utilize M39029 rear release crimp contacts in sizes 22D, 22M, 22, 20, 16, and 8, offering versatility in applications. Constructed with high strength aluminum shells and available in different plating options like cadmium and nickel, these connectors ensure reliable performance. RoHS certified finishes are also available. The series I connectors are ideal for military and aerospace applications where durability and connectivity are crucial.