The MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in an environmentally 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 a choice of plating options, including cadmium-free finishes. Ideal for military and aerospace applications, they are compatible with M39029 rear release crimp contacts and offer RFI grounding plugs. The straight plug design with bayonet coupling ensures secure connectivity, while gold contact plating guarantees high conductivity. Meeting MIL-DTL-38999 I specifications, these connectors are trusted for their durability and performance in demanding environments.