The Intel(R) C610 Series/X99 Chipset USB Enhanced Host Controller 2 - 8D2D driver is a software package that enables your Windows operating system to properly interact with the USB controller on a motherboard that uses the Intel C610 or X99 chipset. This chipset is typically found in Intel's higher-end desktop platforms, such as the Intel Xeon E5 series or Core i7/i9 processors for enthusiast-grade motherboards. The USB Enhanced Host Controller is responsible for managing the USB ports on the motherboard, supporting various USB standards like USB 2.0 and USB 3.0/3.1 for peripherals such as mice, keyboards, external drives, etc.