MIL-DTL-38999 Series I connectors feature up to 128 contacts in an insert, designed for harsh environments with an operating temperature range of -65°C to 200°C. Offering front wall mount, rear wall mount, and jam nut receptacles, they ensure secure connections. These connectors come in 9 shell sizes and 52 insert arrangements, with M39029 rear release crimp contacts. Constructed from high-strength aluminum, they offer various plating options like cadmium and nickel for durability. RoHS certified finishes are available. Suitable for military and industrial applications, these connectors guarantee reliable performance in demanding conditions.