MIL-DTL-38999 Series I connectors feature up to 128 contacts in an environmentally sealed insert, designed for harsh environments with an operating range from -65 °C to 200 °C. Offering 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, these connectors come in high-strength aluminum shells with various plating options, such as cadmium and nickel. RoHS compliant options are available, making them ideal for demanding applications requiring durability and reliability in connectivity solutions.