MIL-DTL-38999 Series II connectors offer robust performance in harsh environments, featuring up to 128 contacts securely enclosed in an insert. With an extensive operating temperature range from -65 °C to 200 °C, these connectors ensure reliable connectivity in extreme conditions. Available in various mounting options including front and rear wall mount, jam nut, and box mount receptacles, they cater to diverse application needs. Compliant with military specification MIL-DTL-38999 II, these circular plugs boast a durable aluminum shell with versatile plating choices such as gold, electroless nickel, and cadmium finishes. Designed for longevity, they utilize M39029 rear release crimp contacts and offer RoHS-certified cadmium-free options. Suitable for demanding environments, these connectors provide a high level of ingress protection and conductivity, making them ideal for military, aerospace, and industrial applications.