MIL-DTL-38999 Series II connectors are designed for harsh environments, with up to 128 contacts in an insert ensuring reliable connectivity. These environmentally sealed connectors operate in temperatures ranging from -65 °C to 200 °C. Available in various mounting styles including front wall mount, rear wall mount, jam nut, and box mount receptacles, they offer flexibility for different applications. With options for straight, RFI grounding, and standard plugs, the connectors feature a 90-degree cable clamp. Utilizing M39029 rear release crimp contacts in sizes 22D, 22M, 22, 20, 16, and 12, they provide secure connections. Constructed with aluminum shells and offered in multiple plating options including cadmium and nickel, these connectors are durable and corrosion-resistant. Suitable for military and industrial use, they ensure high performance with a mating life of 500 cycles.