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 from -65 °C to 200 °C, these connectors are suitable for demanding applications. Available in various shell sizes and insert arrangements, they offer flexibility in design. The connectors come in high-strength aluminum shells with options for different plating finishes, including RoHS certified cadmium-free options. Featuring front wall mount, rear wall mount, and jam nut receptacles, as well as RFI grounding plugs, they provide versatile connectivity solutions. Utilizing M39029 rear release crimp contacts, these connectors ensure reliable and secure connections. Suitable for military and industrial use, MIL-DTL-38999 Series I connectors are built to withstand tough conditions with their durable construction and high-performance capabilities.