MIL-DTL-38999 Series II connectors offer high-performance connectivity with up to 128 contacts in an insert. Designed for harsh environments, these connectors are environmentally sealed and can operate in temperatures ranging from -65°C to 200°C. Featuring various mounting options such as front wall mount, rear wall mount, jam nut, and box mount receptacles, they provide versatility for different applications. Available in aluminum shells with a range of plating options including gold, electroless nickel, and cadmium-free finishes, these connectors ensure reliable performance in demanding conditions. With M39029 rear release crimp contacts in six different sizes, they offer flexibility for diverse contact arrangements. The bayonet coupling and socket contact style further enhance ease of use and durability, making them ideal for military, aerospace, and industrial applications requiring rugged and secure electrical connections.