MIL-DTL-38999 Series I connectors feature up to 128 contacts in an insert, designed for harsh environments with operating temperatures ranging from -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, along with RFI grounding plugs. Utilizing M39029 rear release crimp contacts, these connectors ensure secure connections, with options for RoHS certified finishes including cadmium-free platings. Constructed with high-strength aluminum shells, they are ideal for demanding applications where reliability is crucial.