MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts in an environmentally sealed insert. With an operating temperature range of -65 °C to 200 °C, these connectors offer reliable performance in extreme conditions. Available in various mounting styles such as front wall mount, rear wall mount, and jam nut receptacles, they cater to diverse application needs. The connectors, compliant with military specification MIL-DTL-38999 II, come in aluminum shells with options for plating finishes including electroless nickel and cadmium olive drab. Utilizing M39029 rear release crimp contacts, they ensure secure and efficient connectivity. Overall, these connectors are ideal for demanding military and industrial applications requiring rugged and durable solutions.