MIL-DTL-38999 Series I connectors are designed for rugged environments, offering up to 128 contacts sealed for optimal performance in extreme conditions. With an operating temperature range from -65°C to 200°C, these connectors ensure reliable connectivity in a wide range of applications. Available in various shell sizes and insert arrangements, they feature M39029 rear release crimp contacts in sizes 22D, 22M, 22, 20, 16, and 8, including coax and twinax options. The high-strength aluminum shells come with multiple plating choices, such as cadmium and nickel finishes, meeting RoHS compliance standards. Suitable for military and industrial use, MIL-DTL-38999 Series I connectors guarantee durable and efficient electrical connections in demanding settings.