MIL-DTL-38999 Series II connectors, designed for harsh environments, feature up to 128 contacts in an insert, offering reliable connectivity in demanding applications. With a wide operating temperature range from -65 °C to 200 °C, these connectors are environmentally sealed for protection. Available in various configurations such as front and rear wall mount, jam nut, and box mount receptacles, they cater to diverse installation needs. The aluminum shells come with options for plating, including gold, electroless nickel, and cadmium-free finishes, ensuring durability and performance. Utilizing M39029 rear release crimp contacts, these connectors guarantee secure connections, with a mating style of bayonet coupling. Meeting MIL-DTL-38999 II military specifications, they are ideal for critical operations in aerospace, defense, and other rugged environments.