"Cooling fans used in liquid cooling systems not only need to have a high airflow but also they need to be optimised for static pressure. The newly designed blades of the Spectre Xtreme not only look good but also improve the airflow of the fan to 66CFM while maintaining optimum static pressure. This makes the Spectre Xtreme fans an ideal choice for liquid cooling solutions."
Hilbert Hagedoorn - Guru3D.
Bitfenix Spectre Xtreme & Spectre Xtreme LED fans introduced by Guru3D - Full product introduction.