just got a WD MY Book, having USB 3.0.I am using it with my laptop Lenovo Z560. I am getting speeds of only 18MB/sec to 21MB/sec its connected to Esata/ USB 3.0 Port. On top of that I am getting fluctuating speeds on this form 18 to 21 ?On my Seagate which is just USB 2.0 one I get more speeds than this never less than 24MB/sec ? Speeds never fluctuate either here.HDD: 5400 rpmRead online somewhere, a guy on mac book air is getting 98MB/sec on his 5400 rpm hdd and he is unhappy about it lol Is this HDD faulty or something.... ??On WIn7Update: The website I was looking on has wrong info the laptop does not support USB 3.0.