MIL-DTL-38999 Series II connectors offer high-performance connectivity with up to 128 contacts in a rugged, environmentally sealed insert. Designed for harsh environments, these connectors operate reliably in 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 suit diverse applications. Available in 9 shell sizes and 52 insert arrangements, these connectors utilize M39029 rear release crimp contacts in sizes 22D, 22M, 22, 20, 16, and 12. Crafted from aluminum, they come with plating options like light iridescent yellow cadmium, olive drab cadmium, electroless nickel, and black anodized aluminum. With RoHS-certified cadmium-free finishes, these connectors ensure both performance and environmental compliance. Perfect for military and industrial applications, the MIL-DTL-38999 Series II connectors guarantee secure and durable electrical connections in demanding settings.