MIL-DTL-38999 Series I connectors offer high-performance connectivity for harsh environments, featuring up to 128 contacts in a sealed insert. With an operating temperature range of -65°C to 200°C, they provide reliable functionality in extreme conditions. Available in various shell sizes and insert arrangements, these connectors come in aluminum shells with options for plating, including cadmium-free finishes. The connector types include front wall mount, rear wall mount, and jam nut receptacles, all designed for rugged durability. Utilizing M39029 rear release crimp contacts, they ensure secure and efficient connections. Ideal for military and industrial applications, these connectors meet stringent performance standards for conductivity and environmental resistance.