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 of -65 °C to 200 °C, these connectors offer reliability in extreme conditions. Available in various mounting styles including front and rear wall mount, jam nut, and box mount receptacles, they cater to diverse installation needs. The connectors, constructed with aluminum shells, come with multiple plating options such as cadmium and nickel, ensuring durability and corrosion resistance. Compliant with RoHS regulations, they provide a secure and efficient electrical connection solution for military and industrial applications.