First announced by the SATA-IO (Serial ATA International Organization) on September 21, 2009, Mini-SATA, also known as mSATA, is a smaller version of the serial ATA connection. It is used to connect solid-state drives in portable computing devices, such as laptops and netbooks. Mini-SATA devices are usually a bit smaller that the standard size of business card (shown right), and permit data transfer speeds of either 1.5 GB/s or 3.0 GB/s.
GB, Hard drive terms