MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts in an insert. With environmental sealing and a wide operating temperature range of -65 °C to 200 °C, these connectors offer reliable performance in demanding conditions. Available in various configurations including front and rear wall mount, jam nut, and box mount receptacles, they cater to diverse installation requirements. The connectors, compliant with military specification MIL-DTL-38999 II, come in aluminum shells with options for plating such as cadmium and nickel finishes. Utilizing M39029 rear release crimp contacts, they ensure secure and efficient connectivity. Suitable for applications demanding ruggedness and durability, these connectors are ideal for military, aerospace, and industrial use.