MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts within an insert. These connectors are environmentally sealed, with a wide operating temperature range of -65 °C to 200 °C. Available in various mounting options such as front wall, rear wall, jam nut, and box mount receptacles, they offer versatility in installation. With options for straight, RFI grounding, and standard plugs, as well as multiple shell sizes and insert arrangements, these connectors provide flexibility for different applications. Constructed with aluminum shells and offered in various plating options including cadmium-free finishes, they meet stringent military specifications for reliability. Suitable for demanding environments, these connectors ensure secure and efficient electrical connections.