MIL-DTL-38999 Series II connectors feature up to 128 contacts in an insert, designed for harsh environments with operating temperatures ranging from -65 °C to 200 °C. Offering various mounting options, including front and rear wall mount, jam nut, and box mount receptacles, they ensure secure connectivity. Available in 9 shell sizes and 52 insert arrangements, these connectors use M39029 rear release crimp contacts for reliable performance. Crafted from aluminum, they come with plating options such as cadmium and electroless nickel, catering to diverse needs. With RoHS compliant finishes, these connectors guarantee durability and efficiency in demanding applications.