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 wall mount, rear wall mount, and jam nut receptacles with RFI grounding plugs. Constructed with high-strength aluminum shells, these connectors come in RoHS-certified cadmium-free finishes, including options like electroless nickel and black anodized aluminum. Utilizing M39029 rear release crimp contacts, they ensure reliable connectivity in demanding applications, meeting military specification MIL-DTL-38999 I standards.