MIL-DTL-38999 Series I connectors are designed for rugged environments, featuring up to 128 contacts within a sealed insert. With a wide operating temperature range of -65 °C to 200 °C, these connectors ensure reliable performance in harsh conditions. Available in various shell sizes and insert arrangements, they offer flexibility for different applications. Made of high strength aluminum, they come with plating options such as gold and electroless nickel for enhanced conductivity and durability. Meeting military specifications, these connectors are ideal for aerospace, defense, and industrial settings requiring secure and efficient electrical connections.