The MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts in a sealed insert. With an operating temperature range of -65°C to 200°C, these connectors offer reliability in extreme conditions. Available in various mounting options such as front and rear wall mount, jam nut, and box mount receptacles, they cater to diverse applications. The connectors come in aluminum shells with plating options including cadmium-free finishes, ensuring durability and environmental compliance. Utilizing M39029 rear release crimp contacts, they offer secure connections in sizes 22D, 22M, 22, 20, 16, and 12. Ideal for military and industrial use, these connectors provide high-performance connectivity with gold-plated contacts, meeting stringent quality standards.