MIL-DTL-38999 Series II connectors, designed for harsh environments, feature up to 128 contacts in an insert and offer reliable performance in temperatures ranging from -65 °C to 200 °C. With various mounting options such as front and rear wall mount, jam nut, and box mount receptacles, these connectors provide versatility for different applications. Available in 9 shell sizes and 52 insert arrangements, they utilize M39029 rear release crimp contacts for secure connections. Constructed with aluminum shells and offering plating options including gold, electroless nickel, and cadmium-free finishes, these connectors ensure durability and corrosion resistance. Meeting military specification MIL-DTL-38999 II, they are ideal for demanding environments requiring rugged and dependable connectivity solutions.