eSATA
 SATA
is very effective for external storage applications, and the
external SATA (eSATA) cable and connector application provides a
physically secure and fast connection for external hard drives.
With up to 3 Gb/s data transfers, this interface is suitable for
hard drives, home networking, digital video, and home
entertainment devices such as set-top boxes and personal video
recorders. eSATA and internal SATA cables and connectors cannot
be used interchangeably. This is an important feature since
eSATA cables and connectors are designed for 5000 insertion and
removal cycles while internal SATA cables and connectors are
designed for only 50 insertion and removal cycles. To achieve
eSATA connectivity with an external SATA drive, a SATA PCI card
must be installed on the host computer.
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