MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in an insert for high-density connectivity. With options for front wall mount, rear wall mount, and jam nut receptacles, these connectors offer versatility in installation. They are environmentally sealed, ensuring reliable performance in extreme conditions with an operating temperature range of -65 °C to 200 °C. Utilizing M39029 rear release crimp contacts in various sizes, including coaxial and twinax, they guarantee secure and efficient connections. Constructed with high-strength aluminum shells and available in different plating options like electroless nickel and cadmium finishes, these connectors prioritize durability and corrosion resistance. Meeting MIL-DTL-38999 I specifications, they are suitable for military and aerospace applications.