MIL-DTL-38999 Series I connectors are designed for rugged environments, featuring up to 128 contacts within a sealed insert. With an impressive operating range of -65°C to 200°C, they offer reliability in extreme conditions. Available in various shell sizes and insert arrangements, these connectors come in aluminum shells with different plating options, including cadmium-free finishes for RoHS compliance. The family includes front wall mount, rear wall mount, and jam nut receptacles, along with RFI grounding plugs, catering to diverse application needs. Utilizing M39029 rear release crimp contacts, they ensure secure connections. Suitable for military and industrial use, these connectors provide durability and performance in demanding settings.