MIL-DTL-38999 Series II connectors offer high performance in harsh environments, featuring up to 128 contacts in a durable insert. With an operating temperature range of -65 °C to 200 °C, these connectors are ideal for demanding applications. Available in various mounting styles such as front and rear wall mount, jam nut, and box mount receptacles, they provide flexibility in installation. The connectors come in 9 shell sizes and 52 insert arrangements, accommodating a wide range of configurations. Utilizing M39029 rear release crimp contacts, they ensure reliable connections. Constructed with aluminum shells and offering multiple plating options including cadmium-free finishes, these connectors prioritize durability and environmental compliance. Suitable for military and industrial use, they meet MIL-DTL-38999 II specifications for performance and reliability.