Quick overview from the supplier:
PC Case Fan be quiet! Silent Wings 4 PWM, 140x140x25 mm, <13.6db, 51.3 CFM, 1100RPM, 7 blades, Fluid-dynamic bearing, PWM, 4pin, Black
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Model Silent Wings 4 140mm PWM
Dimensions (mm) 140
Color option Black
Fan speed at 100% PWM / 12V (rpm) 1100
Noise level at 100% PWM / 12V (dB(A)) 13.6
Airflow at 100% PWM / 12V (CFM / m3/h) 51.3 / 87.2
Air Pressure at 100% PWM / 12V (mm H2O) 0.92
Dimensions (L x W x H), (mm) 140 x 25 x 140
Weight incl. fixed cables (g) 220
Bearing technology FDB
Motor technology 6-pole fan motor
Push pin fixing ✓
Screw fixing ✓
Connector 4-pin PWM
Cable length (mm) 500
Cable sleeve ✓
Airflow at 100% PWM / 12V (CFM / m3/h) 51.3 / 87.2
Air Pressure at 100% PWM / 12V (mm H2O) 0.92
Noise level at 100% PWM / 12V (dB(A)) 13.6
Lifespan (h / 25°C) 300,000
Zero RPM mode ✓
