MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in an insert. These connectors are environmentally sealed, with an operating temperature range from -65°C to 200°C. Available in various shell sizes and insert arrangements, they come in wall mount configurations and offer RFI grounding plugs. Made of high strength aluminum, they are plated with options like electroless nickel and cadmium finishes, including RoHS certified cadmium-free options. These connectors, compliant with military specification MIL-DTL-38999 I, are ideal for applications requiring reliable and durable electrical connectivity in demanding conditions.