The MIL-DTL-38999 Series II connectors are designed for harsh environments, with up to 128 contacts in an insert that ensures reliable connectivity. These connectors are environmentally sealed, capable of operating in extreme temperatures ranging from -65 °C to 200 °C. Featuring various mounting options such as front wall, rear wall, and jam nut receptacles, they offer versatility for different applications. With M39029 rear release crimp contacts in multiple sizes, including 22D, 22M, 22, 20, 16, and 12, these connectors provide secure connections. Constructed with aluminum shells and available in plating options like gold, electroless nickel, and cadmium-free finishes, they guarantee durability and compliance with RoHS regulations. The MIL-DTL-38999 Series II connectors, with their robust design and diverse configurations, are ideal for military, aerospace, and industrial applications requiring high-performance connectivity in demanding environments.