MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in an environmentally sealed insert. With an operating temperature range of -65 °C to 200 °C, they offer reliable performance in extreme conditions. Available in various shell sizes and insert arrangements, these connectors come in high-strength aluminum shells with options for plating finishes including cadmium-free coatings. Offering front wall mount, rear wall mount, and jam nut receptacles, as well as RFI grounding plugs, they are ideal for military and aerospace applications. With RoHS-certified options available, these connectors ensure both performance and environmental compliance.