MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts in an environmentally sealed insert. With an operating temperature range from -65°C to 200°C, these connectors offer reliable performance in extreme conditions. Available in various mounting styles such as front and rear wall mount, jam nut, and box mount receptacles, they cater to diverse application needs. The plugs, including straight, RFI grounding, and standard with a 90-degree cable clamp, ensure secure connections. Compliant with military specification MIL-DTL-38999 II, these connectors come in 9 shell sizes and 52 insert arrangements, utilizing M39029 rear release crimp contacts. Constructed with aluminum shells and offering plating options like electroless nickel and cadmium finishes, they provide durability and corrosion resistance. With a service rating of M and service class E, these connectors guarantee high performance and reliability, making them ideal for demanding environments.