MIL-DTL-38999 Series II connectors are designed for rugged environments, featuring up to 128 contacts in an insert and offering reliable performance in temperatures ranging from -65 °C to 200 °C. These connectors come in various mounting options, including front and rear wall mount, jam nut, and box mount receptacles. With options for straight, RFI grounding, and standard plugs, they cater to diverse connectivity needs. Utilizing M39029 rear release crimp contacts, they ensure secure connections in sizes 22D, 22M, 22, 20, 16, and 12. Constructed with aluminum shells and available in different plating options such as electroless nickel and cadmium finishes, they offer durability and corrosion resistance. RoHS compliant versions are also available, meeting environmental standards. Ideal for military and industrial applications, these connectors provide high-performance solutions for demanding conditions.