The MIL-DTL-38999 Series II connectors feature up to 128 contacts in a durable insert, designed for harsh environments with an operating temperature range of -65 °C to 200 °C. Available in various mounting styles including front and rear wall mount, jam nut, and box mount receptacles, they offer versatility in installation. These connectors, compliant with military specification MIL-DTL-38999 II, utilize M39029 rear release crimp contacts for secure connections. Constructed with aluminum shells and offered in different plating options, such as electroless nickel and cadmium finishes, they ensure reliable performance in demanding applications. RoHS compliant options are available, making them suitable for a variety of industries requiring high-performance connectivity solutions.