The MIL-DTL-38999 Series II connectors offer exceptional durability and performance in harsh environments, with up to 128 contacts sealed for environmental protection. Designed for a wide temperature range from -65 °C to 200 °C, these connectors come in various configurations including front wall mount, rear wall mount, jam nut, rear box mount, and front box mount receptacles. Featuring aluminum shells and available in different plating options such as electroless nickel and cadmium finishes, they ensure reliable conductivity. With M39029 rear release crimp contacts in select sizes, these connectors are ideal for military and industrial applications requiring rugged and secure connectivity.