The MIL-DTL-38999 Series II connectors offer high-performance connectivity with up to 128 contacts in a rugged, environmentally sealed design. Operating flawlessly in extreme temperatures ranging from -65 °C to 200 °C, these connectors are ideal for harsh environments. Featuring various mounting options like front and rear wall mount, jam nut, and box mount receptacles, they ensure versatile installation. Available in 9 shell sizes and 52 insert arrangements, they accommodate M39029 rear release crimp contacts in different sizes. Crafted from durable aluminum with plating options including electroless nickel and cadmium finishes, they guarantee long-lasting quality. With RoHS certified cadmium-free options, they meet stringent environmental standards, making them perfect for military and industrial applications.