MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts within an insert and offering reliable performance in extreme temperatures ranging from -65 °C to 200 °C. Available in various mounting options such as front and rear wall mount, jam nut, and box mount receptacles, these connectors ensure versatility in installation. With a selection of shell sizes and insert arrangements, they accommodate different contact types, including M39029 rear release crimp contacts. The connectors, made of durable aluminum, come with plating options like cadmium and electroless nickel for enhanced corrosion resistance. Meeting military specification MIL-DTL-38999 II, they guarantee high-quality and dependable connectivity for mission-critical applications.