The MIL-DTL-38999 Series II connectors set the standard for robust connectivity in harsh environments, offering up to 128 contacts in an insert. With environmental sealing and a wide operating temperature range from -65 °C to 200 °C, these connectors ensure reliable performance in demanding conditions. Available in various mounting styles, including front and rear wall mount, jam nut, and box mount receptacles, they cater to diverse installation needs. Featuring aluminum shells with options for plating in cadmium-free finishes, such as electroless nickel and black anodized aluminum, these connectors prioritize durability and compliance. Utilizing M39029 rear release crimp contacts, they guarantee secure connections. Ideal for military applications, the MIL-DTL-38999 Series II connectors boast a service rating of I, with a focus on environmental resistance and conductivity. Their versatility and reliability make them essential for critical operations.