MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in an environmentally sealed insert. With a wide operating temperature range of -65 °C to 200 °C, these connectors are versatile and reliable. Available in various mounting options like front wall mount, rear wall mount, and jam nut receptacles, they offer flexibility in installation. The connector family includes RFI grounding plugs and utilizes M39029 rear release crimp contacts for secure connections. Constructed with high strength aluminum shells, they come in different plating options including cadmium and electroless nickel, meeting various application requirements. RoHS certified finishes are also available. Suitable for military and industrial use, these connectors ensure robust performance in demanding conditions.