The MIL-DTL-38999 Series II connectors boast a rugged design, with up to 128 contacts housed within an insert for secure connectivity. Engineered for harsh environments, these connectors are fully sealed and can operate in 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, they cater to diverse installation needs. Featuring 9 shell sizes and 52 insert arrangements, these connectors utilize M39029 crimp contacts for reliable performance. Crafted from durable aluminum, they come with plating options like cadmium and nickel for enhanced corrosion resistance. With RoHS certified finishes available, they ensure compliance with environmental standards. Suitable for military applications, these connectors offer a high level of conductivity and ingress protection, making them ideal for demanding scenarios.