The MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in an environmentally sealed insert. With a wide operating temperature range from -65 °C to 200 °C, they offer reliable performance in extreme conditions. Available in various shell sizes and insert arrangements, these connectors come in high strength aluminum shells with options for plating, including cadmium-free finishes. They offer front wall mount, rear wall mount, and jam nut receptacles with RFI grounding plugs, ensuring secure connections. Utilizing M39029 rear release crimp contacts, they guarantee efficient signal transmission. RoHS certified options are also available, making them compliant with environmental regulations. Perfect for military and industrial applications, these connectors provide durable and dependable connectivity solutions.