The MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in an insert for reliable connectivity. With a wide operating temperature range of -65 °C to 200 °C, these connectors are environmentally sealed for optimal performance. Available in various shell sizes and insert arrangements, they utilize M39029 rear release crimp contacts for secure connections. Constructed with high-strength aluminum shells and offered in different plating options, including cadmium-free finishes, they ensure durability and corrosion resistance. Suitable for military and industrial applications, these connectors meet stringent MIL-DTL-38999 I specifications, making them ideal for use in demanding environments.