The MIL-DTL-38999 Series II connectors are designed for rugged environments, with up to 128 contacts in a sealed insert. Operating between -65 °C to 200 °C, these connectors offer reliable performance in extreme conditions. Featuring various mounting options, including front and rear wall mount, jam nut, and box mount receptacles, they provide versatility for different applications. With 52 insert arrangements and gold-plated removable crimp contacts, these connectors ensure efficient and secure connections. Constructed from aluminum with plating options such as electroless nickel and cadmium olive drab, they meet stringent military specifications for durability. Suitable for use in harsh environments, these connectors are ideal for industries requiring reliable electrical connectivity.