MIL-DTL-38999 Series II connectors offer high-performance connectivity with up to 128 contacts in an environmentally sealed insert. Designed for harsh environments, these connectors feature various mounting options including front wall, rear wall, jam nut, and box mount receptacles. Available in 9 shell sizes and 52 insert arrangements, they utilize M39029 crimp contacts for reliable connections. With a wide range of plating options, including cadmium-free finishes, these connectors are suitable for diverse applications. Operating efficiently in temperatures ranging from -65°C to 200°C, they ensure robust performance in demanding conditions. The Series II connectors, with their durable aluminum shells and gold contact plating, guarantee conductivity and longevity, making them ideal for military and industrial use.