The MIL-DTL-38999 Series I connectors are designed for harsh environments, with up to 128 contacts housed in an insert for optimal connectivity. Featuring front wall mount, rear wall mount, and jam nut receptacles, they offer versatility in installation. Constructed with high-strength aluminum shells and available in various plating options, including RoHS certified finishes, these connectors ensure durability and reliability. Operating in temperatures ranging from -65 °C to 200 °C, they are suitable for a wide range of applications. Utilizing M39029 rear release crimp contacts, they guarantee secure connections. With 52 insert arrangements and 9 shell sizes, they offer flexibility in design. The environmentally sealed construction and conductive nature make them ideal for demanding environments. Whether in military or industrial settings, these connectors meet the stringent requirements for performance and longevity.