QNAP is one of the leading vendors in the COTS NAS (commercial off-the-shelf network attached storage) space. They have a wide variety of hardware platforms to choose from, ranging from ARM-based single-bay systems to Xeon-based rackmounts. Earlier this week, they launched the Bay Trail-based TS-x51+ series for home and SOHO users. We have the 4-bay variant, the TS-451+ in for review. Read on to see how the unit stacks up against the competitors in this space.