The MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts in an insert. These connectors are environmentally sealed, with a wide operating temperature range of -65 °C to 200 °C. Available in various mount types including front and rear wall mount, jam nut, and box mount receptacles, they offer flexibility for different applications. With 52 insert arrangements and M39029 rear release crimp contacts, these connectors ensure secure and reliable connections. Constructed with aluminum shells and offered in multiple plating options such as gold and electroless nickel, they meet stringent military specifications for durability and performance. Suitable for use in demanding environments, these connectors are ideal for applications requiring rugged and reliable connectivity.