The MIL-DTL-38999 Series II connectors are designed for harsh environments, offering up to 128 contacts in a single insert. With a wide 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 finishes such as electroless nickel and cadmium, they ensure durability and conductivity. Compliant with military specification MIL-DTL-38999 II, these connectors are suitable for use in demanding environments that require secure and high-performance electrical connections.