Swiftech HELIX-120-BW-PWM 120m PWM Case Fan

The Helix 120mm PWM fan features the same great performance (high static pressure and low noise) as the Helix 120, but also includes PWM speed control. Fan Specifications: - Dimensions: 120x25mm - Voltage: ~7 - 13.8 VDC - Current: 0.16 A - Speed: 800 RPM (+/- 25%) - 1,800 RPM (+/- 10%) - Volume: 24.23 - 54.55 CFM - Static pressure: 0.53 - 2.29 mmH20 - Accoustic noise: < 16 to 33 dBa - Bearing type: Z-Axis - Connector: 4 Pin - PWM speed control: Yes - Tach Output: Yes Model HELIX-120-BW-PWM.