MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts within a sealed insert. With an operating temperature range from -65 °C to 200 °C, these connectors offer reliable performance in demanding conditions. Available in various mounting styles such as front and rear wall mount, jam nut, and box mount, they cater to diverse installation needs. The connectors come in 9 shell sizes and 52 insert arrangements, accommodating M39029 rear release crimp contacts. Constructed with aluminum shells and offering plating options like cadmium and nickel, they ensure durability and corrosion resistance. Meeting MIL-DTL-38999 II specifications, these connectors are ideal for military and industrial applications requiring rugged, high-performance connectivity.