MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts within an environmentally sealed insert. With an operating temperature range of -65 °C to 200 °C, these connectors offer reliable performance in extreme conditions. Available in various shell sizes and insert arrangements, they utilize M39029 rear release crimp contacts for secure connections. The high strength aluminum shells come in a range of plating options, including RoHS certified finishes, ensuring durability and environmental compliance. Suitable for military and industrial applications, these connectors are ideal for back panel and wall mounting installations, with options for jam nut receptacles and RFI grounding plugs. With gold-plated contacts and a bayonet coupling design, they provide efficient and dependable connectivity in demanding situations.