MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts in an insert. With environmental sealing and a wide operating temperature range from -65 °C to 200 °C, they offer reliable performance in demanding conditions. Available as front and rear wall mount, jam nut, and box mount receptacles, as well as straight and 90-degree cable clamp plugs, these connectors provide versatility in installation. Utilizing M39029 rear release crimp contacts, they ensure secure connections. Constructed with aluminum shells and various plating options, including cadmium-free finishes, they meet rigorous standards for durability and performance in military and industrial applications.