MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts within an insert for reliable electrical connections. These connectors are environmentally sealed, ensuring performance in extreme conditions with an operating temperature range from -65 °C to 200 °C. Available in various mounting options such as front and rear wall mount, jam nut, and box mount receptacles, they offer versatility in installation. Constructed with aluminum shells and offered in different plating options including electroless nickel and cadmium finishes, they meet stringent military specifications for durability. With RoHS certified cadmium-free options, these connectors are suitable for a wide range of applications requiring secure and high-performance connectivity in challenging environments.