MIL-DTL-38999 Series II connectors, designed for harsh environments, feature up to 128 contacts in an environmentally sealed insert. With an operating temperature range from -65 °C to 200 °C, these connectors offer reliability in extreme conditions. Available in various mounting styles, including front and rear wall mount, jam nut, and box mount receptacles, they cater to diverse application needs. The plugs, offered in straight, RFI grounding, and standard configurations with a 90-degree cable clamp, ensure secure connections. Compliant with military specification MIL-DTL-38999 II, these circular connectors come in aluminum shells with options for plating, such as electroless nickel, ensuring durability. Suitable for demanding environments, they provide efficient connectivity for critical operations.