MIL-DTL-38999 Series I connectors offer high-performance connectivity with up to 128 contacts housed in a durable insert. Designed for harsh environments, they provide reliable operation in temperatures ranging from -65 °C to 200 °C. Featuring front wall mount, rear wall mount, and jam nut receptacles, as well as RFI grounding plugs, this connector family caters to diverse installation needs. With 9 shell sizes and 52 insert arrangements available, they accommodate various configurations, utilizing M39029 rear release crimp contacts. Constructed with high-strength aluminum shells, these connectors are offered in multiple plating options, including cadmium-free finishes for RoHS compliance. Suitable for military applications, they ensure secure and efficient electrical connections in demanding environments.