The Intel(R) 8 Series/C220 Series SATA AHCI Controller - 8C02 driver is part of the Intel chipset driver package that enables proper communication between the operating system and the Intel 8 Series or C220 Series chipset for storage devices (like hard drives and SSDs) using the SATA (Serial ATA) interface in AHCI (Advanced Host Controller Interface) mode. These chipsets are commonly found in newer Intel-based motherboards, often in systems using 6th generation Intel Core processors (also known as Skylake), or similar processors from the 8 Series or C220 families.