MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts within an insert. These environmentally sealed connectors have a wide operating temperature range from -65 °C to 200 °C. Available in various configurations including 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 shell sizes and insert arrangements, these connectors provide flexibility for different applications. Constructed with aluminum shells and offering a choice of plating finishes including cadmium-free options, they meet stringent military specifications for reliability. Ideal for use in demanding environments, these connectors ensure secure and durable electrical connections.