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