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, they offer reliable performance in harsh conditions. Available in various shell sizes and insert arrangements, these connectors come in aluminum shells with options for plating, including cadmium-free finishes. Perfect for military and industrial applications, they offer secure connectivity with options for jam nut, front wall mount, and rear wall mount receptacles. Utilizing M39029 rear release crimp contacts, they ensure durable and efficient connections. With RoHS compliant options, they meet environmental standards while providing high conductivity and ingress protection. The MIL-DTL-38999 Series I connectors are essential for demanding environments requiring reliable electrical connections.