The Phanteks SK PWM 120mm fan has a stylish sleek look & has been optimised for airflow thanks to its nine blade design The fan will complement the Eclipse line of PC cases in particular but is ideal for anyone looking to have a fan that is both aesthetically impressive & solidly constructed As a PWM fan (Pulse-Width Modulation) its rotation speed can be user controlled by connecting the fan to a compatible motherboard or Phanteks controller As a result users can choose whether they hey want the fan to run quietly or have enhanced airflow Rubber dampeners included with the fan help further reduce fan noise THE PHANTEKS PWM SK 120MM FAN AT A GLANCE120mm PWM fan Nine blade design optimised for air flow Rubber dampeners for stability & quiet operation Ideal for use with the Phanteks Eclipse PC cases SPECIFICATIONFan Dimension (Wx Hx D) 120 mm x 120 mm x 25 mm 472 in x 472 in x 098 in Bearing Type Rifle bearing Blade Geometry Nine Blades Design (black) Rated Voltage DC 12 V Operating Voltage Range 4 13VPWM Yes Rated Current (Ampere) 100 015A &177;002 Locked Curent Brake Protection Power Consumption 264W 10 Max Speed 500 1500 5 -10 RPMMax Airflow 50 CFM (ft 3min) Max Air Pressure 096 mm H2 O Noise Level 27 d B (A) Fan Connector 4 Pin PWMCable Length 550 mm 2165 in MTBF 40 000 hrs Weight 1342g