we use> 10 pcs. of these hard drives for data backup on the server (alternately) and the panels now work without any problems for 3 years. We also transport take the hard drives from the office saying, is very pleasant that the hard drives are to hold a by the rubber sheath quite robust and very pleasant on the other in his hand. Another advantage is that we very much appreciate that the hard drives run without Netzeil (ie. Power only from the USB port). All in all, we have about 20-22 such plates and it has in the past 3 years (we have bought successively) given a single problem with any of these disks. A great product at a reasonable price with long-term availability over several years (and in this industry)