MIL-DTL-38999 Series II connectors are rugged circular plugs designed for harsh environments, featuring up to 128 contacts for secure connectivity. With a wide operating temperature range from -65 °C to 200 °C, these connectors are ideal for demanding applications. Available in various mount types including front and rear wall mount, jam nut, and box mount receptacles, they offer versatility in installation. Constructed with aluminum shells and offering multiple plating options, such as gold and electroless nickel, these connectors ensure reliable performance. Compliant with military specification MIL-DTL-38999 II, they are suitable for defense, aerospace, and industrial applications requiring robust and durable connectivity solutions.