MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts sealed within the insert. With an operating temperature range of -65°C to 200°C, these connectors offer reliability in extreme conditions. Available in various shell sizes and insert arrangements, they utilize M39029 rear release crimp contacts for secure connections. The high-strength aluminum shells come in different plating options, including cadmium-free finishes for RoHS compliance. With options for front wall mount, rear wall mount, and jam nut receptacles, as well as RFI grounding plugs, these connectors provide versatility for military and industrial applications.