MIL-DTL-38999 Series I connectors boast up to 128 contacts housed within their environmentally sealed inserts, designed for harsh operating conditions with a wide temperature range of -65°C to 200°C. This connector family features front wall mount, rear wall mount, and jam nut receptacles, along with RFI grounding plugs, offering versatility in installation. With 9 shell sizes and 52 insert arrangements available, these connectors utilize M39029 rear release crimp contacts in various sizes, including coax and twinax options. Constructed with high-strength aluminum shells, they come in a range of plating choices such as cadmium and nickel, catering to different environmental requirements. These connectors, compliant with MIL-DTL-38999 I specifications, guarantee reliable performance in demanding applications, making them ideal for military and industrial use.