The MIL-DTL-38999 Series II connectors are designed for rugged environments, featuring up to 128 contacts in a sealed insert. With a wide operating temperature range of -65 °C to 200 °C, these connectors offer reliable performance in harsh conditions. Available in various mounting options such as front and rear wall mount, jam nut, and box mount receptacles, they provide flexibility for different applications. The connector shells are made of durable aluminum, with plating options including gold, electroless nickel, and cadmium-free finishes. Meeting MIL-DTL-38999 II military specifications, these connectors ensure secure and efficient electrical connections in demanding settings.