MIL-DTL-38999 Series I connectors feature up to 128 contacts within an environmentally sealed insert, suitable for harsh environments with an operating range of -65 °C to 200 °C. Available in various shell sizes and insert arrangements, they offer versatility in applications. These connectors, compliant with military specification MIL-DTL-38999 I, come in high-strength aluminum shells with options for different plating finishes, including RoHS-certified cadmium-free coatings. With contact plating in gold, they ensure reliable conductivity, and their Bayonet coupling mechanism provides secure mating. Designed for box mounting, the connectors are ideal for use in demanding environments where durability and performance are crucial.