MIL-DTL-38999 Series I connectors boast high performance in harsh environments with up to 128 contacts, offering reliable connectivity in demanding conditions. Featuring front wall mount, rear wall mount, and jam nut receptacles, they ensure secure installations. With an operating temperature range from -65 °C to 200 °C, these connectors are suitable for a wide range of applications. Utilizing M39029 rear release crimp contacts in various sizes, including coax and twinax, they provide versatile connectivity options. Constructed with high-strength aluminum shells and available in different plating options, such as electroless nickel and cadmium finishes, these connectors offer durability and corrosion resistance. Designed for military specifications, they meet stringent standards for performance and reliability in mission-critical operations.