Short for External Serial Advanced
Technology Attachment eSATA is an extension
to the Serial ATA standard that enables SATA
drives to be attached externally. Prior to eSATA, external hard drives were
connected via USB 2.0 or FireWire. While eSATA can provide faster
transfer rates
than USB or FireWire, it requires its own power connector.
Serial ATA.org The Serial ATA International Organization (SATA-IO) is an independent, non-profit organization developed by and for leading industry companies.