MIL-DTL-38999 Series II connectors offer reliable performance in harsh environments, featuring up to 128 contacts within an insert. With a wide operating temperature range of -65 °C to 200 °C, these connectors are ideal for demanding applications. Available in various mounting options such as front and rear wall mount, jam nut, and box mount receptacles, they provide flexibility in installation. The connectors come in aluminum shells with different plating options, including gold, electroless nickel, and cadmium-free finishes, ensuring durability and corrosion resistance. Utilizing M39029 rear release crimp contacts, they guarantee secure and efficient connections. With a mating type of bayonet and a service rating of M, they are suitable for military and industrial use. The MIL-DTL-38999 Series II connectors are designed for environment-resistant performance, making them essential components in critical systems.