Businesses are always in need of more storage, and those with experience know that its the data that is important and therefore redundancy is critical. We take a look today at the QNAP TS-409U Turbo NAS which combines several features to bring you a device that is not only easy to use and fast, but also provides redundancy. The TS-409U has a laundry list of features and aims to please everyone from the advanced home user to the most needy of businesses. Is the TS-409U just what the doctor ordered? Read our review to find out.