MIL-DTL-38999 Series I connectors offer robust connectivity solutions for harsh environments, featuring up to 128 contacts in a sealed insert. With an operating temperature range of -65 °C to 200 °C, these connectors are suitable for a wide range of applications. Available in various shell sizes and insert arrangements, they utilize M39029 rear release crimp contacts for reliable performance. The connectors come in high-strength aluminum shells with options for different plating finishes, including cadmium-free choices. With RoHS certification, they meet environmental standards, making them ideal for military and industrial use. The series includes front wall mount, rear wall mount, and jam nut receptacles, as well as RFI grounding plugs, catering to diverse installation needs.