The MIL-DTL-38999 Series II connectors, designed for harsh environments, feature up to 128 contacts in an environmentally sealed insert. With an operating temperature range from -65 °C to 200 °C, these connectors offer reliable performance in extreme conditions. Available in various mounting styles, including front and rear wall mount, jam nut, and box mount receptacles, they provide versatility for different applications. The connectors come in aluminum shells with a choice of plating options, ensuring durability and corrosion resistance. Utilizing M39029 rear release crimp contacts, they offer secure connections in sizes 22D, 22M, 22, 20, 16, and 12. With RoHS-certified cadmium-free finishes available, they meet environmental standards while delivering high conductivity and ingress protection. Suitable for military and industrial use, these connectors are essential for demanding connectivity requirements.