The MIL-DTL-38999 Series II connectors are designed for rugged environments, featuring up to 128 contacts in an insert. With an operating temperature range of -65 °C to 200 °C, they offer reliable performance in extreme conditions. Available in various mounting styles, including front and rear wall mount, jam nut, and box mount receptacles, these connectors meet military specifications for durability. Utilizing gold-plated removable crimp contacts, they ensure secure connections with a mating type of bayonet coupling. Constructed with aluminum shells and offered in different plating options, such as electroless nickel and iridescent yellow cadmium, they provide excellent corrosion resistance. Ideal for applications requiring high reliability, these connectors are suitable for use in harsh environments.