MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts within an insert. These connectors are environmentally sealed, ensuring reliable performance in extreme conditions with an operating temperature range of -65 °C to 200 °C. Available in various mounting styles such as front and rear wall mount, jam nut, and box mount receptacles, they offer versatility in installation. With options for straight, RFI grounding, and standard plugs, including 90-degree cable clamp variants, they cater to diverse connectivity needs. Utilizing M39029 rear-release crimp contacts in sizes 22D, 22M, 22, 20, 16, and 12, these connectors guarantee secure and efficient connections. Constructed with aluminum shells and offering plating choices like electroless nickel, they provide durability and corrosion resistance. The MIL-DTL-38999 II connectors meet stringent military specifications, making them ideal for aerospace, defense, and other mission-critical applications.