MIL-DTL-38999 Series I connectors are designed for rugged environments, featuring up to 128 contacts in a sealed insert. With a wide operating temperature range of -65°C to 200°C, these connectors offer reliability in extreme conditions. Available in various shell sizes and insert arrangements, they accommodate M39029 rear release crimp contacts. The high-strength aluminum shells come in different plating options, including cadmium-free finishes. Offering front and rear wall mount options, as well as jam nut receptacles, they ensure secure connections. Suitable for military and industrial applications, these connectors meet stringent standards for performance and durability.