MIL-DTL-38999 Series I connectors offer high-performance connectivity with up to 128 contacts housed in a durable insert. Designed for harsh environments, they feature front wall mount, rear wall mount, and jam nut receptacles, along with RFI grounding plugs. With a wide operating temperature range of -65 °C to 200 °C, these connectors ensure reliable performance in extreme conditions. Available in 9 shell sizes and 52 insert arrangements, they utilize M39029 rear release crimp contacts for secure connections. The high-strength aluminum shells come in various plating options, including cadmium-free finishes, meeting RoHS compliance standards. Perfect for military and industrial applications, these connectors guarantee longevity and conductivity with their conductive socket contact style and environment-resistant design.