HotHardware.com posted a review on the WD My Passport Edge External Hard Drive

When USB flash drives first came to market it was a revolution. They offered much larger storage capacity compared to floppy disks, packaged in something about the size of a person's thumb. Suddenly, you could just save your papers, presentations, and even a smattering of photos onto a little flash drive and safely take it with you anywhere.

Times have changed, obviously, with the advent of cloud-based storage solutions like Dropbox, but portable storage on a physical device is still as necessary as ever, especially when you need a substantial amount of available capacity for backup purposes. External hard drives are the ticket here, and Western Digital has a teeny-tiny one that offers 500GB of storage in a form factor that fits in your pants pocket with relative ease.

  WD My Passport Edge External Hard Drive Review