MIL-DTL-38999 Series I connectors offer high-performance connectivity with up to 128 contacts in an insert, designed for harsh environments. Featuring front wall mount, rear wall mount, and jam nut receptacles, they ensure secure connections in demanding applications. With an operating temperature range of -65 °C to 200 °C, these connectors are suitable for a wide variety of scenarios. The connectors, available in 9 shell sizes and 52 insert arrangements, utilize M39029 rear release crimp contacts for reliable connections. Constructed with high-strength aluminum shells and offered in various plating options such as iridescent yellow cadmium and electroless nickel, these connectors prioritize durability and performance. Additionally, they meet military specification MIL-DTL-38999 I and are compliant with RoHS regulations. Whether for aerospace, defense, or industrial use, these connectors ensure reliable signal transmission in challenging environments.