The MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts in an insert and offering reliable performance in extreme conditions. With a wide operating temperature range of -65°C to 200°C, these connectors are environmentally sealed for maximum protection. Available in various mounting options including front and rear wall mount, jam nut, and box mount receptacles, they provide flexibility for different applications. The connectors come in aluminum shells with a choice of plating options such as cadmium-free finishes, ensuring durability and compliance with RoHS regulations. Utilizing M39029 rear release crimp contacts, they guarantee secure connections in critical military and aerospace systems. Perfect for demanding environments, these connectors meet MIL-DTL-38999 II specifications, making them ideal for use in aerospace, defense, and industrial applications.