MIL-DTL-38999 Series II connectors feature up to 128 contacts and are renowned for their environmental resilience, with an operating temperature range spanning from -65 °C to 200 °C. These connectors, available in various configurations including front and rear wall mount, jam nut, and box mount receptacles, are designed for harsh environments. Crafted from aluminum, they offer durability and come with a choice of plating options such as electroless nickel and cadmium finishes. Utilizing M39029 rear release crimp contacts, they ensure secure and reliable connections, making them ideal for military and industrial applications requiring robust electrical connectivity.