The MIL-DTL-38999 Series II connectors, designed for harsh environments, feature up to 128 contacts in an insert and are environmentally sealed for reliable performance. Operating within a wide temperature range from -65 °C to 200 °C, these connectors are versatile for various applications. Available in different configurations such as front and rear wall mount, jam nut, and box mount receptacles, they offer flexibility in installation. With options for straight, RFI grounding, and standard plugs, as well as multiple shell sizes and insert arrangements, they cater to diverse connectivity needs. Crafted with aluminum shells and various plating options like cadmium and nickel, these connectors ensure durability and corrosion resistance. Meeting military specification MIL-DTL-38999 II, they guarantee quality and performance in demanding environments.