An external hard drive.

In computer storage, an external hard drive is a hard disk-based storage device which attaches externally to its host. Most such devices for consumer use connect to personal computers over standard USB, Firewire, eSATA or (less commonly, SCSI) interface buses, making them convenient as a form of portable data storage. They are also commonly used for small-scale data archival. Image File history File links Size of this preview: 449 × 599 pixelsFull resolution (1454 × 1940 pixel, file size: 137 KB, MIME type: image/jpeg) File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ... Image File history File links Size of this preview: 449 × 599 pixelsFull resolution (1454 × 1940 pixel, file size: 137 KB, MIME type: image/jpeg) File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ... This article or section does not cite any references or sources. ... Note: USB may also mean upper sideband in radio. ... The 6-pin and 4-pin FireWire Connectors FireWire is Apple Inc. ... This page has been deleted, and should not be re-created without a good reason. ... This article or section does not cite any references or sources. ...

External hard drives are essentially sealed enclosures of hard disks (or arrays of disks) sold as ready-to-use storage. Higher-end units with Fiber Channel or SCSI interfaces are sometimes classed as direct-attached storage. Fibre Channel is a serial computer bus intended for connecting high speed storage devices to computers. ... This article or section does not cite any references or sources. ... Direct Attached Storage (DAS) refers to a digital storage system directly attached to a server or workstation, without a storage network in between. ...

Disk enclosures are self-assembly kits which put conventional ATA or SATA internal hard disks into external enclosures with USB or Firewire interfaces. A 3. ... This article does not cite any references or sources. ... A SATA power connector. ... Note: USB may also mean upper sideband in radio. ... The 6-pin and 4-pin FireWire Connectors FireWire is Apple Inc. ...