Hello There, the Hitachi 1TB is installed as a second TB hard drive in my Dell 17R SE and serves exclusively as a backup disk. Means that the data of the primary TB hard drive (a Western Digital Scorpio Blue) 1: 1 copied to the Hitachi, that's it. But also means that there are currently about 800GB, usually copied overnight, which takes several hours. It shows the following main results: The Hitachi is - also in the benchmark - slightly slower than the WD. Be careful when assessing the statement: Both hard drives are working in SATA-II mode, although the Hitachi is a SATA III drive. They could presumably even faster. Here, transfer rates up to 80MB result / s (see also set benchmark screenshot). The WD is also a bit quieter but only slightly. Leiser is this that I hear only a little more clearly the read-write access of Hitachi as in the WD. The pure running noise due to the revolutions of the disk are not really noticeable to me. An "imbalance" of the plate and thus tactile vibrations at the laptop, as is sometimes more generally reports of hard drives, I can not perceive. Temperatures higher than 48 degrees Celsius were CrystelDiskInfo (V5.4.1) is not measured, but are strangely the temperatures in the "cold state" (shortly after booting the computer) about 2 degrees lower than in the WD. Here, on which there are neither the one nor the other disk booted but by an mSATA SSD all programs. I would say that the temperature sensors of the WD and Hitachi just differ by these 2 degrees. In practice, all this does not matter. All tests that provides DELL for hard drives, ran so far without any problems. No abnormalities by the SMART data, which represents the hard drive available. Anyway: If the plate for a long time, so many years, hold out and I can not have any mechanical problems, the panel would recommend. Very good P / L.
1. Update (Aug 2013): 1250 hours of operation, about 400 power-ups, max. Temperature 51 degrees Celsius - no abnormalities. 2. Update (Apr 2015): 6050 hours in operation, about 1850 power-ups, max. Temperature 52 degrees Celsius - no abnormalities.
