The MIL-DTL-38999 Series I connectors offer a rugged solution for harsh environments, featuring up to 128 contacts in an insert. Designed for durability, these connectors are environmentally sealed and can operate in temperatures ranging from -65 °C to 200 °C. Available in various shell sizes and insert arrangements, they come in high-strength aluminum shells with options for different plating finishes, including RoHS-certified cadmium-free coatings. The connector family includes front wall mount, rear wall mount, and jam nut receptacles, as well as RFI grounding plugs. Utilizing M39029 rear release crimp contacts, these connectors ensure reliable connectivity for applications requiring military-grade specifications.