The MIL-DTL-38999 Series II connectors are essential for rugged environments, offering reliable performance with up to 128 contacts enclosed in a durable insert. With environmental sealing and a wide operating temperature range from -65 °C to 200 °C, these connectors ensure secure connectivity in harsh conditions. Available in various mounting styles such as front and rear wall mount, jam nut, and box mount receptacles, they offer versatility for different applications. Featuring 52 insert arrangements and utilizing M39029 rear release crimp contacts, these connectors provide flexibility and ease of installation. Constructed with aluminum shells and offering multiple plating options including gold and electroless nickel, they guarantee long-lasting durability. Perfect for military and industrial use, these connectors meet MIL-DTL-38999 II specifications and are designed for high-performance in demanding environments.