MIL-DTL-38999 Series II connectors are designed for rugged environments, offering up to 128 contacts in an insert. With an operating temperature range of -65 °C to 200 °C, they provide reliable performance in extreme conditions. Available in various mounting options, including front and rear wall mount, jam nut, and box mount receptacles, these connectors are versatile for different applications. Featuring aluminum shells with options for plating, such as cadmium and nickel, they ensure durability and conductivity. The connectors meet military specifications for quality and performance, making them ideal for aerospace, defense, and industrial use.