MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in an insert. These connectors are front wall mount, rear wall mount, and jam nut receptacles with RFI grounding plugs, offering versatility in installation. With a wide operating temperature range from -65°C to 200°C, they are suitable for various applications. Utilizing M39029 rear release crimp contacts in multiple sizes, including coax and twinax, they ensure reliable connectivity. Constructed with high strength aluminum shells and available in different plating options such as electroless nickel and cadmium finishes, these connectors provide durability and corrosion resistance. Meeting military specification MIL-DTL-38999 I, they guarantee performance in demanding conditions.