The MIL-DTL-38999 Series II connectors boast exceptional versatility with up to 128 contacts housed in a single insert. Engineered for harsh environments, these connectors are fully sealed and capable of withstanding temperatures ranging from -65 °C to 200 °C. Featuring various mounting options including front and rear wall mount, jam nut, and box mount receptacles, they offer flexibility for diverse applications. Available in 9 shell sizes and 52 insert arrangements, these connectors utilize M39029 rear release crimp contacts in multiple sizes. Crafted from durable aluminum, they come with a choice of plating options, including cadmium and nickel finishes. RoHS certified cadmium-free variants are also offered, ensuring compliance with environmental standards. Suitable for military and industrial use, the MIL-DTL-38999 Series II connectors guarantee reliable performance in demanding conditions.