MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts housed in a sealed insert. With an operating temperature range of -65 °C to 200 °C, these connectors offer reliable performance in demanding conditions. Available in various mounting options including front and rear wall mount, jam nut, and box mount receptacles, they provide flexibility for different applications. Constructed with aluminum shells and offering a range of plating options, such as gold and electroless nickel, these connectors ensure durability and efficient signal transmission. Compliant with MIL-DTL-38999 II military specifications, they are ideal for aerospace, defense, and other rugged industrial settings.