The driver is a software component that enables support for Intel's Rapid Storage Technology enterprise (RSTe), which is primarily used in servers and high-performance workstations. RSTe provides advanced storage features such as RAID (Redundant Array of Independent Disks) configurations, disk redundancy, and enhanced data protection, especially in enterprise environments where reliability and performance are critical.

The Virtual Controller driver specifically supports virtualized storage controllers, often used in environments like VMware or other virtualization technologies. It helps create and manage storage configurations that may be part of a virtual machine or virtualized infrastructure.