MIL-DTL-38999 Series I connectors are designed for rugged environments, featuring up to 128 contacts in a sealed insert. With an operating temperature range of -65 °C to 200 °C, these connectors offer 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 plating options like cadmium and nickel, meeting RoHS certification for environmental compliance. Suitable for military and industrial applications, these connectors ensure durable performance in demanding settings.