MIL-DTL-38999 Series II connectors are designed for harsh environments, with up to 128 contacts housed in a sealed insert. Featuring a wide operating temperature range of -65 °C to 200 °C, these connectors come in various styles including front and rear wall mount, jam nut, and box mount receptacles. With options for straight, RFI grounding, and standard plugs, they offer versatility in connectivity. Made with aluminum shells and available in different plating finishes, such as electroless nickel and cadmium olive drab, these connectors ensure reliable performance in demanding applications. Meeting military specification MIL-DTL-38999 II, they are suitable for use in environments where durability and ruggedness are crucial.