MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts within a sealed insert. With a wide operating temperature range from -65°C to 200°C, these connectors offer reliable performance in extreme conditions. Available in various mounting options such as front and rear wall mount, jam nut, and box mount receptacles, they cater to diverse installation needs. The connectors come in aluminum shells with plating choices including cadmium and nickel, meeting stringent military specifications for durability and performance. Suitable for aerospace, defense, and industrial applications, these connectors ensure secure and efficient electrical connections in demanding environments.