MIL-DTL-38999 Series I connectors are designed for harsh environments, offering up to 128 contacts in an insert for high-density applications. With front wall mount, rear wall mount, and jam nut receptacles, they provide versatility in installation. These connectors are environmentally sealed and can operate in temperatures ranging from -65 °C to 200 °C, making them suitable for a wide range of applications. Featuring M39029 rear release crimp contacts in various sizes, including coax and twinax, they ensure reliable connectivity. Constructed with high-strength aluminum shells and available in different plating options, such as cadmium-free finishes, they meet stringent military specifications. Ideal for aerospace, defense, and industrial use, MIL-DTL-38999 I connectors offer durability, performance, and compliance with RoHS regulations.