Having for 1 year, I now write a comment. Excellent hard disk recognized directly (standard Plug & Play requires), vibrates a little bit but nothing too bad, not too hot. Fast transfer rates: around 70-80 mb / s, very convenient to move large files.
Format 2 "5 also very practical: no external power supply.
And for 1 year, I have not encountered any problems, you can buy it eyes closed hard drive, Western Digital's quality gear!