The MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts in an environmentally sealed insert. With a wide operating temperature range of -65 °C to 200 °C, they offer reliable performance in extreme conditions. Available in various mounting styles, including front and rear wall mount, jam nut, and box mount receptacles, these connectors cater to diverse installation needs. Constructed with aluminum shells and offering multiple plating options, such as cadmium and nickel, they ensure durability and corrosion resistance. Utilizing M39029 rear release crimp contacts, they provide secure connections in sizes 22D, 22M, 22, 20, 16, and 12. Suitable for military applications, the MIL-DTL-38999 Series II connectors are essential components for demanding electrical systems.