MIL-DTL-38999 Series II connectors feature up to 128 contacts housed in an environmentally sealed insert, designed for harsh environments with an operating temperature range of -65 °C to 200 °C. Available in various mounting options including front and rear wall mount, jam nut, and box mount receptacles, they cater to diverse connectivity needs. With straight, RFI grounding, and standard plugs offered, in addition to 52 insert arrangements and M39029 rear release crimp contacts, these connectors ensure versatile application possibilities. Crafted from aluminum with plating options such as cadmium and nickel, they meet stringent military specifications for reliability. The connectors, with their gold-plated contacts and robust construction, guarantee efficient and durable performance in demanding scenarios.