The MIL-DTL-38999 Series I connectors offer high-performance connectivity with up to 128 contacts in an environmentally sealed insert. Designed for harsh environments, they feature front and rear wall mount options, as well as jam nut receptacles and RFI grounding plugs. With a wide operating temperature range from -65 °C to 200 °C, these connectors are suitable for rugged applications. Available in 9 shell sizes and 52 insert arrangements, they use M39029 rear release crimp contacts for reliable connections. The high strength aluminum shells come in various plating options, including cadmium-free finishes, ensuring durability and compliance. Perfect for military and industrial use, these connectors guarantee secure and efficient electrical transmission in demanding conditions.