MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in an insert for robust connectivity. With a wide 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 offer versatility for different needs. The connectors come in high-strength aluminum shells with options for plating, including cadmium-free finishes. Meeting military specification MIL-DTL-38999 I, they ensure reliable performance in rugged conditions. With features like front and rear wall mount receptacles, jam nut receptacles, and RFI grounding plugs, they offer secure connections in challenging environments. Suitable for use in defense, aerospace, and industrial applications, these connectors provide durability and performance under extreme conditions.