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