MIL-DTL-38999 Series II connectors are designed for harsh environments, offering up to 128 contacts in an insert. These environmentally sealed connectors operate reliably in temperatures ranging from -65 °C to 200 °C. Featuring various mounting options such as front and rear wall mount, jam nut, and box mount receptacles, they provide versatility for different applications. Available in aluminum shells with a choice of plating options including gold, electroless nickel, and cadmium-free finishes, these connectors ensure reliable conductivity. With M39029 rear release crimp contacts in multiple sizes, they offer flexibility for different wire gauges. Suitable for military and industrial use, these connectors meet MIL-DTL-38999 II specifications, guaranteeing durability and performance in demanding conditions.