MIL-DTL-38999 Series II connectors are built for rugged environments, featuring up to 128 contacts sealed for protection. Operating between -65 °C and 200 °C, they meet stringent military specifications for reliability. With various mounting options - including front and rear wall mount, jam nut, and box mount receptacles - they offer versatility in installation. Available in aluminum shells with plating options like cadmium and nickel, these connectors ensure durability. Using M39029 rear release crimp contacts, they guarantee secure connections in applications requiring up to 500 mating cycles. Designed for conductivity and environmental resistance, they are ideal for demanding industrial and military settings.