The MIL-DTL-38999 Series II connectors offer reliable performance in harsh environments, featuring up to 128 contacts in an environmentally sealed insert. With an operating temperature range from -65°C to 200°C, these connectors are suitable for a wide range of applications. Available in various mounting options including front and rear wall mount, jam nut, and box mount receptacles, they provide flexibility in installation. The connectors come in aluminum shells with options for plating, such as gold, electroless nickel, and anodized aluminum, ensuring durability and corrosion resistance. Compliant with MIL-DTL-38999 specifications, these circular connectors are ideal for use in military and aerospace applications requiring high reliability.