The MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts and environmental sealing for durability. With an operating temperature range of -65 °C to 200 °C, they offer reliable performance in extreme conditions. These connectors come in various configurations, including front and rear wall mount, jam nut, and box mount receptacles, with options for straight, RFI grounding, and standard plugs. Available in 9 shell sizes and 52 insert arrangements, they use rear release crimp contacts for secure connections. Made of aluminum with plating options like cadmium and electroless nickel, these connectors meet stringent military specifications for quality and performance. Perfect for applications requiring rugged, high-reliability connectivity, the MIL-DTL-38999 Series II connectors are a trusted choice in the field.