MIL-DTL-38999 Series I connectors offer reliable connectivity in harsh environments, featuring up to 128 contacts in an environmentally sealed insert. With an operating temperature range of -65°C to 200°C, these connectors are built for durability. 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 a range of plating options, including cadmium-free finishes. Offering front wall mount, rear wall mount, and jam nut receptacles with RFI grounding plugs, these connectors are ideal for military and industrial applications requiring rugged performance.