Zalman Ultra Quiet Fan Series F1 FDB (SF) 80mm case fan w/ Shark-fin blade, Fluid Dynamic Bearing (FDB) Technology for up to 150,000 hour operation, minimal noise and vibration, comes with silicon mou Type: Case Fan Bearing Type: Fluid Dynamic RPM: 2000 RPM Noise Level: 20 - 23dBA Color: Black Compatibility: Case Dimensions: 0.98(H) x 3.15(W) x 3.15(L) Package Contents: FAN 1ea Silicone Pin