MIL-DTL-38999 Series II connectors, designed for harsh environments, feature up to 128 contacts in an insert with environmental sealing. Operating between -65 °C and 200 °C, these connectors come in various configurations like front and rear wall mount, jam nut, and box mount receptacles. Offered in aluminum shells with plating options including cadmium-free finishes, they ensure durability. With M39029 rear release crimp contacts in sizes 22D, 22M, 22, 20, 16, and 12, these connectors provide reliable connectivity. Suitable for military applications, they meet stringent standards for performance and ruggedness, making them ideal for demanding scenarios.