SILENT WINGS PRO 4

140mm PWM
Legendarily quiet, unparalleled performance and features
Silent Wings Pro 4 140mm PWM is the most advanced, powerful and versatile fan from be quiet! 
Optimized fan blades for maximum performance on radiators and heat sinks.
Speed ​​Switch allows the maximum PWM speed to be changed between medium-speed, high-speed and ultra-high-speed (up to 2400 rpm)
Small distance between frame and fan blades and funnel-shaped air outlets for maximum air pressure
Almost inaudible operation at ordinary speeds
6-pole fan motor and fluid dynamic bearing for low-vibration and quiet operation
Individual mounting options for use on radiators and heat sinks or as a case
fan Elegant appearance with high-gloss fan sticker in elegant black and high-quality, sleeved PWM cable
5-year manufacturer 's guarantee

Technical specifications:

• Dimensions (mm) 140
• Speed ​​@ 100% PWM / 12V (RPM) 2400
• Air Flow @ 100% PWM / 12V (CFM / m3/h) 97.41 / 165.5
• Air pressure @ 100% PWM / 12V (mm H2O) 3.64
• lighting -
• Volume at 100% PWM / 12V (dB(A)) 36.8
• Color selection Black
• Maße (L x B x H), (mm) 140 x 140 x 25
• Bearing technology FDB
• Motor technology 6-pole fan motor
• Weight including connection cable (kg) 0.258
• Push pin attachment ✓
• Screw fixing ✓
• Air Flow @ 100% PWM / 12V (CFM / m3/h) 97.41 / 165.5
• Air pressure @ 100% PWM / 12V (mm H2O) 3.64
• Volume at 100% PWM / 12V (dB(A)) 36.8
• Life expectancy @ 25 °C (hours) 300,000