MIL-DTL-38999 Series I connectors are designed for harsh environments, offering up to 128 contacts within an environmentally sealed insert. With a wide operating temperature range of -65 °C to 200 °C, these connectors are suitable for demanding applications. Available in various shell sizes and insert arrangements, they feature front wall mount, rear wall mount, and jam nut receptacles, as well as RFI grounding plugs. Constructed with high-strength aluminum shells, they come in a choice of plating options, including RoHS-certified cadmium-free finishes. These connectors, meeting military specification MIL-DTL-38999 I, ensure reliable performance in challenging conditions.