MIL-DTL-38999 Series I connectors offer high-performance connectivity solutions for harsh environments. With up to 128 contacts in an insert, these circular receptacles are designed for durability, featuring environmentally sealed construction and a wide operating temperature range from -65 °C to 200 °C. Available in various shell sizes and insert arrangements, they accommodate M39029 rear release crimp contacts for reliable connections. The connectors come in rugged aluminum shells with multiple plating options, including RoHS-certified finishes. Suitable for military and industrial applications, they ensure secure and efficient data transmission in demanding settings.