MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts in an insert for secure connectivity. These connectors are environmentally sealed and can withstand temperatures ranging from -65 °C to 200 °C. Available in various mounting options like front and rear wall mount, jam nut, and box mount receptacles, they offer versatility in installation. With options for straight, RFI grounding, and standard plugs, as well as multiple insert arrangements and contact sizes, they provide flexibility for different applications. Constructed with aluminum shells and offering plating options such as cadmium and nickel finishes, these connectors ensure durability and reliable performance. Suitable for military and industrial use, they meet MIL-DTL-38999 II specifications for quality and performance standards.