MIL-DTL-38999 Series II connectors are designed for harsh environments, offering up to 128 contacts in a single insert. With front wall mount, rear wall mount, jam nut, rear box mount, and front box mount receptacles, they provide versatile connectivity options. These connectors, featuring robust construction and environmental sealing, ensure reliable performance in extreme conditions. Utilizing M39029 rear release crimp contacts, they offer secure connections in sizes ranging from 22D to 12. Available in various shell sizes and insert arrangements, with plating options including electroless nickel and cadmium finishes, they meet diverse application needs. RoHS compliant versions are also offered, catering to environmental regulations. Perfect for military and industrial use, these connectors guarantee durability and conductivity, with a contact mating life of 500 cycles.