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 from -65 °C to 200 °C, these connectors offer reliable performance in extreme conditions. Available in various mounting options such as front and rear wall mount, jam nut, and box mount receptacles, they cater to diverse connectivity needs. The connectors come in aluminum shells with plating options including electroless nickel and cadmium finishes, meeting RoHS compliance standards. Built to military specification MIL-DTL-38999 II, they ensure durability and longevity, making them ideal for applications requiring rugged and secure electrical connections.