MIL-DTL-38999 Series I connectors offer robust connectivity solutions in harsh environments, featuring up to 128 contacts in an insert. With a wide operating temperature range of -65 °C to 200 °C, these connectors are designed for reliability in extreme conditions. Available in various mounting options including front wall, rear wall, and jam nut receptacles, they ensure versatile installation. The connectors utilize M39029 rear release crimp contacts, providing secure connections in sizes ranging from 22D to 8 (coax and twinax). Constructed with high-strength aluminum shells, they offer durability and protection. Plating options such as electroless nickel and cadmium finishes cater to different application needs. Compliant with MIL-DTL-38999 I specifications, these connectors are ideal for military, aerospace, and industrial applications requiring rugged performance.