NZXT Technologies FX 140mm Computer Case (Black/White) Three Speed 2000rpm enthusiast fan / 9 Blade Fluid Dynamic Bearing Fan /Sleeved Cables /Two Year Warranty Size: 140 x 140 x 25 mm / Current: 0.13-0.55A / put: 1.56-6.6W Speed: 1000-2000RPM +/- 10% / Air Flow: 49.1-98.3 CFM / Air Pressure: 0.56-2.2 mm-H2O Noise: 22.1-37 dBA / Bearing: Fluid Dynamic Bearing / Life: 35,000 hrs