The MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts within an environmentally sealed insert. With an operating temperature range of -65 °C to 200 °C, these connectors offer reliable performance in extreme conditions. Available in various shell sizes and insert arrangements, they come with M39029 rear release crimp contacts for secure connections. The high-strength aluminum shells are offered in different plating options, including cadmium-free finishes for RoHS compliance. Suitable for military and industrial applications, these connectors provide durability and conductivity for critical operations.