be quiet! Silent Wings Pro 4 / 140 x 140 x 25 mm

Quick overview from the supplier:

PC Case Fan be quiet! Silent Wings Pro 4, 140x140x25mm, Fluid-Dynamic Bearing, 2400rpm, <36,8db, PWM, 4pin, Black . PN: BL099 Model Silent Wings Pro 4 140mm PWM Dimensions (mm) 140 Color option Black Lighting - Fan speed at 100% PWM / 12V (rpm) 2400 Noise level at 100% PWM / 12V (dB(A)) 36.8 Airflow at 100% PWM / 12V (CFM / m3/h) 97.4 / 165.5 Air Pressure at 100% PWM / 12V (mm H2O) 3.64 Dimensions (L x W x H), (mm) 140 x 140 x 25 Weight incl. fixed cables (g) 258 Bearing technology FDB Motor technology 6-pole fan motor Push pin fixing ✓ Screw fixing ✓ Daisy-chain compatible - Lighting connector - Connector 4-pin PWM Cable length (mm) 500 Cable sleeve ✓ Airflow at 100% PWM / 12V (CFM / m3/h) 97.4 / 165.5 Air Pressure at 100% PWM / 12V (mm H2O) 3.64 Noise level at 100% PWM / 12V (dB(A)) 36.8 Lifespan (h / 25°C) 300,000