External HDD vs. SSD: What are the pros and cons of each drive type?

External SSDs are faster than HDDs, but if you need cost-effective backups or larger capacities, a hard drive may be a better ...
Macworld

How to fix ‘The disk you attached was not readable by this computer’

We offer four solutions for a Mac that can't access an external hard drive, SD card or USB drive. Some Mac users report that their Mac or MacBook cannot read the ...