MIL-DTL-38999 Series I connectors offer high-performance connectivity with up to 128 contacts housed in a durable insert. Designed for harsh environments, these connectors are environmentally sealed and can operate in temperatures ranging from -65 °C to 200 °C. Featuring a range of mounting options, including front wall mount, rear wall mount, and jam nut receptacles, they ensure secure and reliable connections. Utilizing M39029 rear release crimp contacts in various sizes, these connectors are versatile and can accommodate different wire types. With options for RoHS compliant finishes, such as cadmium-free platings, they meet environmental standards without sacrificing performance. Constructed with high-strength aluminum shells and available in multiple shell sizes and insert arrangements, these connectors are ideal for military, aerospace, and other demanding applications where ruggedness and reliability are paramount.