MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts in an environmentally sealed insert. With an operating temperature range from -65°C to 200°C, these connectors offer reliable performance in extreme conditions. Available in various mounting styles, including front and rear wall mount, jam nut, and box mount receptacles, they provide versatility for different applications. The aluminum shells come with plating options such as cadmium and nickel, ensuring durability and protection against corrosion. Compliant with military specification MIL-DTL-38999 II, these connectors are ideal for demanding military and aerospace environments where ruggedness and performance are essential.