MIL-DTL-38999 Series II connectors offer high-performance connectivity with up to 128 contacts in an insert, designed for harsh environments. Featuring various mounting options like front and rear wall mount, jam nut, and box mount receptacles, they ensure secure installations. These connectors, compliant with military specifications, boast a wide operating temperature range from -65 °C to 200 °C, making them ideal for rugged applications. With options for RoHS-certified finishes and utilizing M39029 rear release crimp contacts, they guarantee reliable performance. Available in aluminum shells with plating choices like electroless nickel and cadmium olive drab, these connectors are essential for demanding environments where durability and conductivity are paramount.