MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts in an insert for high-density connectivity. These environmentally sealed connectors offer reliable performance in extreme conditions, with an operating temperature range from -65 °C to 200 °C. Available in various mounting styles such as front and rear wall mount, jam nut, and box mount receptacles, they provide flexibility in installation. The connectors come in aluminum shells with options for different plating finishes, including RoHS certified cadmium-free coatings. With M39029 rear release crimp contacts, they ensure secure and efficient connections. Suitable for military and industrial applications, these connectors meet stringent MIL-DTL-38999 II specifications, offering durability and longevity in demanding environments.