西部数据硬盘资料

eSATA

SATA is very effective for external storage applications, and the external SATA (eSATA) cable and connector application (detailed in the SATA 2.5 specification) provides a physically secure and fast connection for external hard drives. With up to 3 Gb/s data transfers, this interface provides a high data transfer rate suitable for hard drives, home networking, digital video, and home entertainment devices such as set-top boxes and personal video recorders. Some systems can be configured to boot off an external eSATA drive.

eSATA and internal SATA cables and connectors cannot be used interchangeably. This is important since eSATA cables and connectors are designed for 5000 insertion and removal cycles while SATA cables and connectors are designed for only 50 insertion and removal cycles.

Note: SATA cables with an L-shaped connector are incompatible with WD eSATA devices. Gigabit Ethernet

Ethernet is a standard method of connecting computers to a local area network (LAN) using twinlead cable. As an external hard drive interface, it is most often used for network attached storage (NAS) applications in which files can be shared across a network or accessed remotely.

Gigabit Ethernet, with its data transfer rate of 1000 Mb/s, is the latest and fastest Ethernet standard that evolved from the earlier Fast Ethernet (100 Mb/s) and Ethernet (10 Mb/s) standards. Benefits of Gigabit Ethernet include increased bandwidth, quality of service (QoS) features that promote smooth transmission of audio and video, and compatibility with existing Ethernet and Fast Ethernet networks.Summary

Hot-swappable (attach Hot-swappable (attach Hot-swappable (attach a device without a device without a device without rebooting the system)rebooting the system)rebooting the system)

480 Mb/s maximum burst transfer rate400 Mb/s maximum sustained transfer rateFast and physically Can attach a device to a secure connection for system’s network external hard drives adapter, router, switch, or hub port800 Mb/s maximum Up to 3 Gb/s maximum 1000 Mb/s maximum sustained transfer rate; sustained transfer rate. sustained transfer rate; twice as fast as Near-equivalent to ten times as fast as FireWire 400internal drive Fast Ethernetperformance.

Best for connecting to Best for fast transfer of Best for multiple-stream Best for transferring Best for sharing large different systems large amounts of data digital video and high-large amounts of data amounts of data and/or quickly and easilyfrequently or for audio/resolution digital audio frequently or for audio/large audio/video files video applications like and video applicationsvideo programsacross a network. Also home video editingbest for remote file access.More popular for PCsMore popular for

Macintosh® computersMore popular for Macintosh computersMore popular for PCsMore popular for PCs

Note: For convenience and flexibility, choose a WD hard drive with both USB and FireWire interfaces (available in dual and triple interface configurations) or with both USB and eSATA

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