MIL-DTL-38999 Series I connectors offer robust performance in harsh environments, featuring up to 128 contacts within a sealed insert. With an impressive operating temperature range of -65 °C to 200 °C, these connectors ensure reliability in extreme conditions. Available in various shell sizes and insert arrangements, they accommodate M39029 rear release crimp contacts for secure connections. The high-strength aluminum shells come in a range of plating options, including cadmium-free finishes for RoHS compliance. With options for front wall mount, rear wall mount, and jam nut receptacles, as well as RFI grounding plugs, these connectors are versatile for military and industrial applications requiring durability and performance assurance.