The ASMedia ASM1166 controller card is a high-performance SATA host controller that features an upstream PCIe Gen3 x2 interface and downstream support for up to six SATA Gen3 ports. The controller card is designed to provide fast and reliable data transfer rates between the host system and multiple SATA storage devices, such as solid-state drives (SSDs) and hard disk drives (HDDs). Its advanced features include Native Command Queuing (NCQ), Hot-Plug support, and staggered spin-up, which enhance the performance and efficiency of the connected storage devices. The ASM1166 controller card can be installed in a PCIe slot on a desktop or server computer, and it is compatible with a wide range of operating systems.