In an effort to resolve confusion over the specifications, the Serial ATA International Organization (SATA-IO), the organization formed to author the SATA specifications, has encouraged the use of SATA 6Gb/s or SATA Revision 3.x instead of the moniker SATA III. The confusion stems from the 3 Gb/s data transfer rate of SATA II vs. the 6 Gb/s rate of the newer specification.
The current SATA III specification, SATA Revision 3.1, adds support for mSATA (SATA for mobile computing devices), Zero-Power Optical Disk Drives (ODD), Queued Trim Command in solid state disks (SSDs), required link power management and more.