Are the hard drives in your computer full, but external hard drives don't provide enough space or safety? What you need then is Network Attached Storage (NAS). If you go for the ones with room for four to five normal hard drives, it will give you a large amount of safe and reliable storage.
A larger number of drives should be interesting for those needing significant storage space - companies, film and music collectors, and professional photographers. For example, images in RAW format us a lot of space, and you will quickly notice that the number of gigabytes will never be enough.
We've reviewed 16 four- and five-bay NAS solutions, that can provide up to 15 terabytes of storage using 3 TB disks.