MIL-DTL-38999 Series II connectors, designed for harsh environments, feature up to 128 contacts in an insert and offer various mounting options including front and rear wall mount, jam nut, and box mount receptacles. With a wide operating temperature range of -65 °C to 200 °C, they ensure reliable performance in extreme conditions. These connectors, compliant with military specification MIL-DTL-38999 II, are constructed with aluminum shells and offer multiple plating options for durability, including gold contact plating. Utilizing M39029 rear release crimp contacts, they guarantee secure connections. RoHS compliant finishes are available, making them suitable for diverse applications requiring environment-resistant, conductive, and high-performance connectivity.