MIL-DTL-38999 Series I connectors feature up to 128 contacts in an insert, designed for harsh environments with an operating temperature 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. Constructed with high strength aluminum shells and offering a choice of plating options, including RoHS compliant finishes, these connectors ensure reliable performance in demanding applications requiring environmental resistance. Suitable for military and industrial use, they meet stringent MIL-DTL-38999 I specifications.