MIL-DTL-38999 Series II connectors are versatile solutions for harsh environments, offering up to 128 contacts within an insert. With a wide operating temperature range of -65 °C to 200 °C, these connectors are suitable for various applications. Available in different mounting styles such as front wall mount, rear wall mount, jam nut, and box mount, they provide flexibility in installation. Featuring aluminum shells with various plating options including gold, electroless nickel, and cadmium-free finishes, these connectors ensure reliable performance. Utilizing M39029 rear release crimp contacts, they offer secure connections. Designed for military specifications, these connectors are durable and resistant to environmental factors, making them ideal for demanding applications in aerospace, defense, and industrial sectors.