MIL-DTL-38999 Series II connectors offer robust connectivity with up to 128 contacts, ideal for harsh environments. Featuring environmentally sealed construction, they ensure reliable performance in temperatures ranging from -65 °C to 200 °C. These connectors come in various configurations, including front and rear wall mount, jam nut, and box mount receptacles, with options for straight, RFI grounding, and standard plugs. Available in 9 shell sizes and 52 insert arrangements, they use M39029 rear release crimp contacts for secure connections. Crafted from aluminum with plating options such as gold, electroless nickel, and cadmium-free finishes, they guarantee durability and conductivity. Designed for military specifications, these connectors meet the stringent requirements of MIL-DTL-38999 II, making them suitable for a wide range of applications in challenging environments.