be quiet! SILENT WINGS PRO 4 120mm PWM

be quiet! SILENT WINGS PRO 4 120mm PWM

Legendary quiet, unparalleled performance and features.

Highlights:

• Silent Wings Pro 4 120mm PWM is the most advanced, powerful and versatile fan from be quiet!  
• Optimized fan blades for highest performance on radiators and heat sinks 
• Speed Switch allows you to change the maximum PWM speed between medium-speed, high-speed and ultra-high-speed (up to 3000 rpm) 
• Small distance between frame and fan blades as well as funnel-shaped air outlets for maximum air pressure 
• Nearly inaudible operation at ordinary speeds 
• 6-pole fan motor and Fluid Dynamic bearings for low-vibration and quiet operation 
• Custom mounting options for use on radiators and heat sinks or as a case fan 
• Elegant appearance with high-gloss fan sticker in classy black and high-quality sleeved PWM cable 

Technical data:

• Dimensions (L x W x H): 120 x 120 x 25 mm 
• Bearing technology: FDB 
• Connector: 4-pin PWM 
• Motor technology: 6-pole fan motor 
• Weight incl. connection cable: 227 g 
• Push pin mounting 
• Screw mounting 
• Air Flow @ 100% PWM / 12V (CFM / m3/h): 83,9 / 142,5 
• Air Pressure @ 100% PWM / 12V (mm H2O): 5,31 
• Loudness @ 100% PWM / 12V (dB(A)): 36,9 
• Life expectancy @ 25 °C (hours): 300,000