MIL-DTL-38999 Series I connectors feature up to 128 contacts in an insert, designed for harsh environments with an operating range of -65 °C to 200 °C. Available in various shell sizes and insert arrangements, they offer front and rear wall mount options, as well as jam nut receptacles with RFI grounding plugs. Utilizing M39029 rear release crimp contacts, these connectors ensure secure connections. Crafted from high-strength aluminum, they come with plating options such as electroless nickel and cadmium finishes. RoHS certified alternatives are also available, making them suitable for a wide range of applications requiring durability and reliability.