Is it possible to display SMART information for an external hard disk drive (e.g. WD MyBook), or for a hard disk drive placed in an external disk enclosure?

Not all USB, eSATA, or FireWire disk enclosures support SMART readout. But out of the ones that do implement that feature, AIDA64 supports most of them. In the case you can find one that is supported by other monitoring software (e.g. HD Sentinel), but unsupported by AIDA64, please contact us through the AIDA64 Discussion Forum, under the "Hardware Monitoring" forum.