The MIL-DTL-38999 Series I connectors offer reliable connectivity in harsh environments with up to 128 contacts housed in an insert. Featuring front and rear wall mount options, as well as jam nut receptacles, they are designed for secure installations. These connectors, meeting military specifications, have a wide operating temperature range from -65 °C to 200 °C, making them suitable for demanding applications. With various plating options available, including cadmium-free finishes, they ensure environmental compatibility. Constructed with high-strength aluminum shells and utilizing M39029 rear release crimp contacts, these connectors provide durability and performance. Perfect for back panel and box mounting applications, they guarantee efficient electrical connections in challenging conditions.