The MIL-DTL-38999 Series II connectors feature up to 128 environmentally sealed contacts, designed for harsh environments with an operating temperature range of -65 °C to 200 °C. Available in various configurations 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, come in aluminum shells with options for RoHS-certified finishes. With 37 gold-plated contacts in a 14-22M arrangement, they ensure reliable conductivity in demanding applications. The bayonet coupling design and rugged construction make them ideal for aerospace, defense, and industrial settings, providing 500 mating cycles and resistance to environmental factors.