MIL-DTL-38999 Series II connectors are designed for rugged environments, offering up to 128 contacts in a single insert. These connectors are environmentally sealed, ensuring reliable performance in harsh conditions with an operating temperature range from -65 °C to 200 °C. Available in various mounting styles including front wall, rear wall, jam nut, and box mount receptacles, they provide versatility for different applications. Featuring aluminum shells with multiple plating options such as gold, electroless nickel, and cadmium finishes, these connectors meet military specifications for durability. Utilizing M39029 rear release crimp contacts, they ensure secure and efficient connections. With EMI/RFI shielding and RoHS compliant options, they are suitable for a wide range of industries requiring high-performance connectivity.