MIL-DTL-38999 Series I connectors offer high-performance connectivity in 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 ideal for demanding applications. Available in various shell sizes and insert arrangements, they utilize M39029 rear release crimp contacts for reliable connections. The connectors come in durable aluminum shells with plating options such as electroless nickel and cadmium finishes. MIL-DTL-38999 I connectors, with options for front wall mount, rear wall mount, and jam nut receptacles, are essential for military and industrial use.