The Intel(R) 6 Series/C200 Series Chipset Family 2 Port Serial ATA Storage Controller - 1C09 is a device driver used to manage the Serial ATA (SATA) interface on systems that use Intel's 6 Series or C200 Series chipset. This chipset is typically found in older Intel motherboards, and the SATA controller handles the communication between the computer's motherboard and storage devices like hard drives (HDDs) or solid-state drives (SSDs) that use the SATA interface.