MIL-DTL-38999 Series II connectors are designed for harsh environments, offering up to 128 contacts within an insert. These connectors are environmentally sealed and can operate in temperatures ranging from -65 °C to 200 °C. Featuring various mounting options including front and rear wall mount, jam nut, and box mount receptacles, they provide versatility in installation. Available in aluminum shells with multiple plating options, such as cadmium and nickel, these connectors ensure durability and reliability. Utilizing M39029 rear release crimp contacts, they guarantee secure connections. With a straight plug configuration and bayonet coupling, they are suitable for military and industrial applications requiring high-performance connectivity.