MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in a sealed insert. With an operating temperature range of -65 °C to 200 °C, they offer reliable performance in extreme conditions. Available in various shell sizes and insert arrangements, these connectors come in high-strength aluminum shells with options for different plating finishes. The connector types include front wall mount, rear wall mount, and jam nut receptacles, along with RFI grounding plugs. Utilizing M39029 rear release crimp contacts, they ensure secure connections. RoHS certified options are also available for environmentally conscious applications. Suitable for military and industrial use, these connectors provide durable and efficient electrical connectivity.