MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in an insert. These connectors are environmentally sealed and can operate in temperatures ranging from -65 °C to 200 °C. Available in various configurations including front wall mount, rear wall mount, and jam nut receptacles, they offer RFI grounding plugs and utilize M39029 rear release crimp contacts. With 9 shell sizes and 52 insert arrangements, they cater to diverse connectivity needs. Constructed with high strength aluminum shells, they come with plating options such as cadmium and nickel. Their durable design, including RoHS certified finishes, ensures reliable performance in demanding applications.