FYI to all interested in this drive: this 120gb model has 2 platters. The 80gb and smaller versions of the 7200.7 drives have 1 platter. There is a noticable noise difference between the two, but it is still MUCH quieter than the WD and other brand drives. I personally can her a difference between a 40gb and this 120gb version with it out of the case sitting on the table. Just a so you know.