Akasa Ak-Fn063 14Cm Viper High Performance S-Flow Fan New Type: Case Fan Bearing Type: HDB (Hydro Dynamic Bearing) RPM: 600 -1600 RPM Air Flow: 110.61 CFM Noise Level: 12.5 - 26.01 dB(A) Power Connector: 4pin PWM Color: Yellow Dimensions: 140 X 140 X 25mm