MIL-DTL-38999 Series II connectors feature up to 128 contacts sealed for environmental protection, with a wide operating temperature range from -65 °C to 200 °C. These connectors, available in various mounting styles, including front and rear wall mount, jam nut, and box mount receptacles, are designed for harsh environments. With options for straight, RFI grounding, and standard plugs, they offer versatility in connectivity solutions. Featuring aluminum shells with plating options such as cadmium and nickel, they ensure durability and reliability. Utilizing M39029 rear release crimp contacts, they provide secure connections. RoHS compliant finishes are available, making them suitable for diverse applications requiring high performance in demanding conditions.