I use the HDD as a data grave of Music and Others. Since my system is used two 512er SSDs as a main memory and designed to Silent, my low volume was the most important attribute when purchasing. The HDD is so in view of its intended mission field some abuse, but as a desktop hard drive makes very good services. First off, from the hard drive can be heard even under load not make a sound! With read / write speeds of 130/120 Mbps measured at me they leigt quite a solid area. The access time of 21 ms is not a superior value, but at NAS storage of this value (ie not as a system disk) does not matter, any more than when using a pure data storage. In short, I am satisfied with the performance!