http://www.techradar.com/news/the-10-best-nas-devices-reviewed

We've put together a list of the best NAS devices money can buy, so you can find the perfect central storage system for your home or office. Buying the best NAS device for your needs is a big task, and needs a lot of thought to make sure you have enough storage and features to keep your important files safe and secure.

If you've not heard of NAS devices before, they are essentially hard drives that connect to your router via an Ethernet cable (often fast Gigabit Ethernet), therefore creating shared storage that can be accessed by your desktop PC, your tablet and almost any device that connects to the same network.