原廠網站有發佈規格了
http://www.wdc.com/en/products/Products.asp?DriveID=494

其中有提到

Small form factor - This ultra fast 2.5-inch hard drive is engineered to fit into blade servers and other enterprise storage configurations. (Not designed for use in laptop or notebook computers)

Ultra-cool operation - WD VelociRaptor consumes 35% less power than the previous generation of WD Raptor.

Ideal For
Blade servers, performance enthusiast systems, workstations, and low-end servers