MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in an insert for reliable connectivity. With front wall mount, rear wall mount, and jam nut receptacles, they offer versatility in installation. These connectors are environmentally sealed and can operate in temperatures ranging from -65 °C to 200 °C, making them ideal for demanding applications. The high strength aluminum shells come in a variety of plating options, including cadmium-free finishes for RoHS compliance. Utilizing M39029 rear release crimp contacts, they ensure secure connections in sizes 22D, 22M, 22, 20, 16, and 8 (coax and twinax). With 52 insert arrangements and 9 shell sizes available, the MIL-DTL-38999 I connectors provide flexibility for various connectivity needs.