The MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts in an insert with environmental sealing. With an operating temperature range of -65°C to 200°C, these connectors offer reliable performance in extreme conditions. Available in various configurations including front and rear wall mount, jam nut, and box mount receptacles, they provide versatility for different applications. Constructed with aluminum shells and offering multiple plating options, such as electroless nickel and cadmium finishes, these connectors ensure durability and corrosion resistance. Utilizing M39029 rear release crimp contacts, they guarantee secure and efficient connections. Suitable for military and aerospace applications, the MIL-DTL-38999 Series II connectors meet stringent standards for performance and reliability.