MIL-DTL-38999 Series I connectors offer high-performance connectivity with up to 128 contacts in an environmentally sealed insert. Designed for harsh environments, these connectors feature front wall mount, rear wall mount, and jam nut receptacles, along with RFI grounding plugs. With 9 shell sizes and 52 insert arrangements available, they accommodate various applications with ease. Utilizing M39029 rear release crimp contacts, they ensure secure and reliable connections. The connectors come in durable high-strength aluminum shells, offering enhanced protection. Plating options include light iridescent yellow cadmium, olive drab cadmium, electroless nickel, and black anodized aluminum, catering to diverse needs. RoHS certified finishes are also available, making them environmentally friendly choices. Ideal for military and industrial applications, these connectors guarantee excellent performance even in extreme conditions.