MIL-DTL-38999 Series II connectors, designed for harsh environments, feature up to 128 contacts in an environmentally sealed insert. With an operating temperature range of -65 °C to 200 °C, these connectors come in various configurations including front and rear wall mount, jam nut, and box mount receptacles. The plugs, available in straight, RFI grounding, and standard options, offer versatility for different applications. Utilizing M39029 rear release crimp contacts, these connectors ensure secure and reliable connections. Constructed with aluminum shells and offering plating options such as electroless nickel and cadmium finishes, they meet stringent military specifications. Suitable for demanding environments, these connectors provide superior performance and durability.