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 and rear wall mount and jam nut receptacles, they offer RFI grounding plugs for enhanced performance. With 9 shell sizes and 52 insert arrangements, these connectors utilize M39029 rear release crimp contacts, catering to different contact sizes. Crafted from high-strength aluminum, they are offered in multiple plating options such as electroless nickel and cadmium finishes, including RoHS-certified alternatives. Ideal for military applications, these connectors guarantee reliability with 500 mating cycles and conductive socket contact style, ensuring durability in challenging environments.