MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts in a sealed insert. With an operating temperature range of -65 °C to 200 °C, these connectors offer durability in extreme conditions. Available in various mounting options such as front and rear wall mount, jam nut, and box mount receptacles, they provide versatility in installation. The connectors come in aluminum shells with plating options including cadmium and nickel, ensuring reliable performance. Compliant with military specification MIL-DTL-38999 II, these circular receptacles with removable crimp contacts are ideal for applications requiring rugged and secure electrical connections.