In the past we have reviewed a number of various NAS boxes from QNAP and have always been pleased with their performance and features. Today we take a closer look at their latest top of the line, the QNAP TS-259 Pro+NAS, and see how it holds up to the competition as well as taking a look at some other models. While its outside appearance is very similar to the previous generation of NAS boxes from QNAP, a closer look at the specs reveals that the system’s internals have been completely overhauled. Remember that when looking at the specs, NAS boxes have a customized OS so they are normally extremely low powered and are optimized purely for network and file I/O.