The MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts sealed within an insert. With an operating temperature range of -65°C to 200°C, they offer reliable performance in extreme conditions. Available in various shell sizes and insert arrangements, these connectors come in front wall mount, rear wall mount, and jam nut receptacle configurations, with RFI grounding plugs. Constructed with high-strength aluminum shells, they offer durability and are offered in a range of plating options, including cadmium-free finishes for RoHS compliance. Utilizing M39029 rear release crimp contacts, these connectors ensure secure and efficient connectivity, making them ideal for military and industrial applications.