when I was idly googling, I found the hard drive with high capacity. it coincides with me , because I save a lot of songs, movies, photos, games, software ... and it only takes up to 40% less power than traditional 7200 RPM drives to save energy ... Form javahard : Source : http://javahard.blogspot.com/2011/10/western-digital-caviar-green-wd20ears-2.html