The MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts in an insert with environmental sealing. Operating in temperatures ranging from -65°C to 200°C, these connectors offer reliable performance in extreme conditions. Available in various configurations like front wall mount, rear wall mount, jam nut, and more, they cater to diverse installation needs. With options for straight, RFI grounding, and standard plugs, as well as multiple shell sizes and insert arrangements, these connectors provide versatility for different applications. Crafted from aluminum and offering plating options like electroless nickel and cadmium finishes, they ensure durability and corrosion resistance. Meeting military specification MIL-DTL-38999 II, these connectors guarantee high-quality standards for demanding environments.