The MIL-DTL-38999 Series II connectors are designed for rugged environments, featuring up to 128 contacts in a durable insert. With a wide operating temperature range of -65 °C to 200 °C, they offer reliable performance in extreme conditions. Available in various mounting styles like front and rear wall mount, jam nut, and box mount receptacles, these connectors are versatile for different applications. Made of aluminum with RoHS compliant plating options, they ensure both durability and environmental safety. Utilizing M39029 crimp contacts, they guarantee secure connections, while the Bayonet coupling mechanism allows for quick and easy mating. Perfect for military and industrial use, these connectors are essential for ensuring reliable electrical connections in harsh environments.