MIL-DTL-38999 Series I connectors offer high-performance connectivity with up to 128 contacts in an environmentally sealed insert. Designed for harsh environments, they operate reliably 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, these connectors ensure secure connections. With 52 insert arrangements and M39029 rear release crimp contacts in various sizes, including coax and twinax, they provide versatility for different applications. The durable aluminum shells come in multiple plating options, such as cadmium and nickel, catering to specific needs. Meeting stringent MIL-DTL-38999 I specifications, they guarantee reliable performance in demanding settings.