MIL-DTL-38999 Series I connectors are designed for rugged environments, featuring up to 128 contacts in a sealed insert. With an operating temperature range from -65°C to 200°C, they offer durability in extreme conditions. Available in various shell sizes and insert arrangements, these connectors come in aluminum shells with options for plating finishes. They meet military specifications for reliability and performance, making them ideal for applications requiring secure electrical connections in harsh settings.