Silencio FP120 PWM 2400, 120mm cooling fan, Whisper-Quiet Cooling Performance (R4-SFNL-24PK-R1) Description The Cooler Master Silencio FP 120 PWM fan is the latest in whisper-quiet cooling performance, encompassing the latest in CM Smart Technology. The Silent Driver IC provides a smoother, less torque impulse for an ultra-low noise and minimal vibrations from the beginning to the end. Smart Fan Engine that generates 25% more air pressure from the blade. Longevity is no problem for the Silencio fan as it utilizes Cooler Master's latest Loop Dynamic Bearing (LOB) technology the highest dustproof level of IP6X for a long- lasting slient cooling performance fan for computer cases, CPU coolers, and radiators. Features: Silencio FP 120mm PWM functionality offers a balances in silence and performance Static Pressure of up to 4.8mmH20 to push air through those tight or high resistance spaces. Advance Ultra-Durable, Self-Lubricating Loop Dynamic Bearing (LOB) offers the highest dustproof level of IP6X , for longer lifespan of up to 160,000 hours. Silent Driver IC technology provides a smoother, less torque impulse for an ultra-low noise and minimal vibrations from the beginning to the end Smart Fan Engine design generates 25% more air pressure, minimizing resistance, and maximizing performance from the blade. Product Details: Product Dimensions: 4.7"L x 4.7"W x 1"H Brand: Cooler Master Power Connector Type: 4-Pin Voltage: 12 Volts Wattage: 1.92 watts Cooling Method: Water Compatible Devices: Desktop Noise Level: 14 dB Material: Aluminum Maximum Rotational Speed: 2400 RPM Product Dimensions: ‎4.7"L x 4.7"W x 1"H Brand: ‎Cooler Master Power Connector Type: ‎4-Pin Voltage: ‎12 Volts Wattage: ‎1.92 watts Cooling Method: ‎Water Compatible Devices: ‎Desktop Noise Level: ‎14 dB Material: ‎Aluminum Maximum Rotational Speed: ‎2400 RPM Item model number: ‎R4-SFNL-24PK-R1 Item Weight: ‎5.6 ounces Item Dimensions LxWxH: ‎4.7 x 4.7 x 1 inches Color: ‎Non-LED Manufacturer: ‎Cooler Master USA, Inc. Is Discontinued By Manufacturer: ‎No Date First Available: ‎December 1, 2015