The MIL-DTL-38999 Series I connectors offer reliable connectivity in harsh environments, featuring up to 128 contacts in an insert. With an operating temperature range of -65 °C to 200 °C, these connectors are ideal for demanding applications. Available in various shell sizes and insert arrangements, they utilize M39029 rear release crimp contacts for secure connections. Constructed with high strength aluminum shells and offering multiple plating options, including RoHS certified finishes, these connectors ensure durability and performance. The Series I connectors include front and rear wall mount receptacles, as well as jam nut receptacles, with RFI grounding plugs for enhanced functionality. Designed for military specifications, they meet stringent standards for reliability and ruggedness, making them suitable for a wide range of industrial and military applications.