MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in 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 styles including front and rear wall mount receptacles, they are ideal for military and aerospace applications. The connectors utilize M39029 rear release crimp contacts and come in high strength aluminum shells with options for different plating finishes, ensuring durability and corrosion resistance. RoHS compliant versions are also available, making them suitable for a wide range of industrial uses.