MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in an insert. These connectors are environmentally sealed, with an operating temperature range of -65 °C to 200 °C. Available in various shell sizes and insert arrangements, they offer versatility for different applications. Constructed with high-strength aluminum shells, they come in plating options such as cadmium and nickel. The connectors, compliant with RoHS regulations, are suitable for military and industrial use, ensuring reliable performance in demanding conditions.