The 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 spanning from -65 °C to 200 °C, these connectors offer reliable performance 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 come in aluminum shells with options for plating such as gold, electroless nickel, and cadmium finishes. Utilizing M39029 rear release crimp contacts, they ensure secure and efficient connections. Meeting stringent military specifications, these connectors are ideal for applications requiring durability and longevity.