MIL-DTL-38999 Series II connectors offer high-performance connectivity, featuring up to 128 contacts within a rugged insert. Designed for harsh environments, these connectors are fully sealed and can operate in temperatures ranging from -65 °C to 200 °C. Available in various mounting styles, including front and rear wall mount, jam nut, and box mount receptacles, they provide versatile installation options. The connectors come in 9 shell sizes and 52 insert arrangements, accommodating M39029 rear release crimp contacts in different sizes. Constructed with aluminum shells and offering multiple plating options, such as cadmium and nickel, these connectors ensure reliable performance. With RoHS-certified finishes available, they meet environmental compliance standards. Ideal for military and industrial applications, the MIL-DTL-38999 Series II connectors deliver durability and high conductivity, making them essential components for demanding settings.