MIL-DTL-38999 Series I connectors offer robust connectivity solutions with up to 128 contacts in an insert, ensuring efficient signal transmission in harsh environments. Designed for durability, these connectors are environmentally sealed and can operate in temperatures ranging from -65 °C to 200 °C. Available in various shell sizes and insert arrangements, they feature M39029 rear release crimp contacts for secure connections. The high-strength aluminum shells come with plating options like gold, electroless nickel, and cadmium finishes for enhanced performance. With wall mount, rear wall mount, and jam nut receptacles, these connectors provide versatility in installation. RoHS compliant options are also available, making them suitable for a wide range of applications.