The MIL-DTL-38999 Series I connectors boast durability and versatility, with up to 128 contacts housed in a sealed insert. Designed for harsh environments, these connectors operate flawlessly in temperatures ranging from -65 °C to 200 °C. Featuring various mounting options like front and rear wall mount, as well as jam nut receptacles, they offer flexibility for different applications. With 52 insert arrangements and M39029 rear release crimp contacts in multiple sizes, including coax and twinax, they ensure reliable connectivity. Encased in high-strength aluminum shells with various plating options, such as cadmium and nickel, they meet diverse requirements. Whether it's for military, aerospace, or industrial use, these connectors guarantee superior performance and longevity, making them an ideal choice for demanding applications.