MIL-DTL-38999 Series II connectors are designed for rugged environments, featuring up to 128 contacts in an insert. With a wide operating temperature range from -65°C to 200°C, these connectors offer reliable performance in harsh conditions. Available in various mounting styles like front wall, rear wall, and jam nut receptacles, they cater to diverse connectivity needs. The connectors, made of aluminum, come with plating options such as cadmium and nickel, ensuring corrosion resistance. Utilizing M39029 rear release crimp contacts, they offer secure connections with 500 mating cycles. Perfect for military and industrial applications, these connectors provide EMI/RFI shielding and environmental resistance, meeting stringent standards for reliability and durability.