The FM121 is a superb 120mm fan package with manual adjustable fan controller. Equipped with 9 fan blades, it offers elevated quietness and performance levels beyond traditional 7 bladed fans. Finding a perfect speed for this fan in any given application is simple on the included aluminum fan controller. Constructed out of high strength white colored plastic and polished to a smooth shine, the FM121 is the ultimate solution for any PC and HTPC enthusiasts looking to upgrade their 120mm fan.Unique 9-bladed design.All white fan blade and frame.800rpm ~ 2400rpm speed range.Long-life dual ball bearing motor.Stylish aluminum fan controller.Material: Plastic (PC).Color: White.Bearing: Dual ball bearing.Rated Voltage: 12 VDC.Start Voltage: 7 VDC.Rated Current: 0.40A (Max. 0.45A).Rated Power: 4.8W (Max. 5.4W).Speed: 800 ~ 2400rpm.Airflow: Max. 110.03CFM.Static Pressure: Max. 3.26mmH2O.Noise Level: 17dBA at 800rpm, 39.5dBA at 2400rpm.Life Time: 50,000 hours.Dimension: 120 x 120 x 25mm.