MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts within an insert. These connectors are environmentally sealed, with an operating temperature range of -65°C to 200°C. Available in various mounting styles such as front wall mount, rear wall mount, jam nut, and box mount, they offer versatility for different applications. With options for straight, RFI grounding, and standard plugs, in 9 shell sizes and 52 insert arrangements, these connectors utilize M39029 rear release crimp contacts. Built with aluminum shells and offered in multiple plating options including cadmium-free finishes, they ensure durability and reliability. Ideal for military and industrial use, they meet MIL-DTL-38999 II specifications, providing secure and efficient connectivity in demanding settings.