MIL-DTL-38999 Series II connectors feature up to 128 contacts in a sealed insert, designed for harsh environments with an operating temperature range of -65°C to 200°C. Available in various mounting styles such as front and rear wall mount, jam nut, and box mount receptacles, they offer versatility for different applications. With options for straight, RFI grounding, and standard plugs, they ensure secure and reliable connections. Made of aluminum with plating choices including cadmium and nickel, these connectors meet rigorous military specifications for durability and performance. Perfect for demanding environments, they guarantee high conductivity and longevity with 500 mating cycles.