MIL-DTL-38999 Series I connectors feature up to 128 contacts in an insert, offering environmental sealing and a wide operating temperature range of -65 °C to 200 °C. With options for front wall mount, rear wall mount, and jam nut receptacles, this connector family includes RFI grounding plugs, available in 9 shell sizes and 52 insert arrangements. Utilizing M39029 rear release crimp contacts in various sizes, including coax and twinax, these connectors are housed in high-strength aluminum shells with plating options such as cadmium and nickel. RoHS certified finishes are also available, making them suitable for a range of applications requiring durability and reliability in harsh environments.