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 and rear wall mount, jam nut, and box mount receptacles. Available as straight or 90-degree cable clamp plugs, they accommodate M39029 crimp contacts in sizes 22D, 22M, 22, 20, 16, and 12. Constructed with aluminum shells and offering plating options like electroless nickel, these connectors ensure reliable operation in temperatures ranging from -65 °C to 200 °C. With RoHS-certified finishes, they meet stringent environmental standards while providing 500 mating cycle durability. Suitable for military and industrial applications, the MIL-DTL-38999 Series II connectors guarantee secure and efficient electrical connections in demanding settings.