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 of -65 °C to 200 °C, these connectors are suitable for demanding applications. Available in various configurations including front and rear wall mount as well as jam nut receptacles, they offer versatility. Utilizing M39029 rear release crimp contacts, these connectors ensure secure and reliable connections. Constructed with high-strength aluminum shells and offering multiple plating options, such as gold, electroless nickel, and cadmium finishes, they provide enhanced durability and conductivity. With RoHS certified cadmium-free options available, these connectors meet environmental standards while maintaining high performance. Perfect for military and industrial applications, the MIL-DTL-38999 Series I connectors guarantee rugged reliability in critical systems.