The MIL-DTL-38999 Series I connectors feature up to 128 contacts in an insert, designed for harsh environments with operating temperatures ranging from -65 °C to 200 °C. Available in various shell sizes and insert arrangements, they offer front wall mount, rear wall mount, and jam nut receptacles. Utilizing M39029 rear release crimp contacts, these connectors ensure reliable performance. Constructed with high-strength aluminum shells and offering multiple plating options, including RoHS-certified finishes, they are ideal for military and industrial applications requiring rugged and secure connections.