The MIL-DTL-38999 Series I connectors offer high-performance connectivity in harsh environments, featuring up to 128 contacts within an environmentally sealed insert. Designed for durability, these connectors operate reliably in temperatures ranging from -65°C to 200°C. Available in a variety of shell sizes and insert arrangements, they accommodate M39029 rear release crimp contacts in various sizes. With options for front wall mount, rear wall mount, and jam nut receptacles, as well as RFI grounding plugs, these connectors provide versatile installation solutions. Constructed with high-strength aluminum shells and offered in different plating options, including cadmium-free finishes, they meet stringent quality standards. Suitable for military and industrial applications, the MIL-DTL-38999 Series I connectors ensure secure and efficient electrical connections in demanding conditions.