MIL-DTL-38999 Series I connectors feature up to 128 contacts in an environmentally sealed 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 and RFI grounding plugs. Utilizing M39029 rear release crimp contacts, these connectors are constructed with high-strength aluminum shells and come in a range of plating options, including RoHS certified finishes. Suitable for military and industrial applications, they ensure reliable performance in demanding conditions.