The Intel(R) C600/X79 Series Chipset USB2 Enhanced Host Controller 2 - 1D2D driver is a software component required for proper operation of the USB ports on motherboards that use the Intel C600 or X79 series chipsets. These chipsets are typically found on high-end Intel-based platforms such as workstation or enthusiast-grade motherboards. The driver allows Windows to properly interact with and manage USB 2.0 devices connected to the USB ports controlled by this chipset.