The 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 of -65 °C to 200 °C, these connectors offer reliable performance in extreme conditions. Available in various mounting options including front wall mount, rear wall mount, jam nut, and box mount receptacles, they cater to diverse installation needs. The plugs, offered in straight, RFI grounding, and standard configurations with a 90-degree cable clamp, ensure secure connections. With 52 insert arrangements utilizing M39029 rear release crimp contacts, these connectors guarantee efficient signal transmission. Constructed with aluminum shells and plated with options like cadmium and electroless nickel, they provide durability and corrosion resistance. RoHS certified finishes are also available, aligning with environmental standards. Suitable for military and industrial applications, the MIL-DTL-38999 Series II connectors deliver high performance and reliability.