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, along with RFI grounding plugs. Constructed with high strength aluminum shells, these connectors come with a choice of plating options including light iridescent yellow cadmium, olive drab cadmium, electroless nickel, and black anodized aluminum. Utilizing M39029 rear release crimp contacts, they ensure reliable connections with options for RoHS certified finishes. Ideal for military and industrial applications, these connectors provide durable and rugged performance, meeting MIL-DTL-38999 I specifications.