MIL-DTL-38999 Series I connectors feature up to 128 contacts in an insert, designed for harsh environments with an operating temperature range of -65°C to 200°C. Available in various mounting options including front wall, rear wall, and jam nut receptacles, they offer RFI grounding plugs for added functionality. With 52 insert arrangements and M39029 rear release crimp contacts, these connectors ensure secure and reliable connections. Crafted from high-strength aluminum, they come in different plating options such as electroless nickel and cadmium finishes, including RoHS certified cadmium-free variants. Perfect for military and industrial applications, these connectors provide durability and performance in demanding environments.