by Dinesh Thakur

eSATA. The external SATA interface has been around longer than most of the ports we just described. Until USB 3.0 came along, this port was the fastest link to consumer storage peripherals such as external hard drives.

Like the internal SATA interface, eSATA may support theoretical transfer rates of 1.5Gbps, 3Gbps, or 6Gbps. Some recent eSATA ports also supply enough electrical power to run compatible flash memory drives, but some eSATA ports require supplemental power from a USB port.