MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in a sealed insert. With an operating temperature range from -65 °C to 200 °C, these connectors offer reliable performance in extreme conditions. Available in various shell sizes and insert arrangements, they use rear release crimp contacts for secure connections. The high-strength aluminum shells come with plating options such as cadmium and nickel for durability. Meeting military specifications, they are ideal for applications requiring rugged and reliable connectivity.