Excerpt: If low cost is your primary concern, you’d be hard pressed to find a better drive for the money than Hitachi’s Touro Desk Pro . The sleek, all-black enclosure looks great on your desktop, but that’s where it will most likely stay since you’ll need to keep it plugged into the DC power supply.
Pros: Affordable. Inexpensive compared to more portable models. Stackable design, which eases expansion.
Cons: Needs to stay connected to the power supply, so it’s not portable. Hitachi’s cloud-based backup software isn’t nearly as simple as setting up a Dropbox account, or a cloud storage account from some other provider.