The MIL-DTL-38999 Series I connectors feature up to 128 contacts housed in an insert, designed for harsh environments with operating temperatures ranging from -65 °C to 200 °C. Available in various shell sizes and insert arrangements, these connectors offer versatility for different applications. Constructed with high strength aluminum shells and offering a choice of plating options including cadmium-free finishes, they ensure reliable performance. With options for front wall mount, rear wall mount, and jam nut receptacles, as well as RFI grounding plugs, these connectors meet diverse connectivity needs. Utilizing M39029 rear release crimp contacts in sizes 22D, 22M, 22, 20, 16, and 8, they guarantee secure and efficient connections. Whether for military or industrial use, the MIL-DTL-38999 I connectors provide durability, conductivity, and environmental resilience.