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be quiet! Silent Wings 4 120mm PWM High-Speed vs Scythe Kaze Flex II 120 PWM: Comparison

be quiet! Silent Wings 4 120mm PWM High-Speed and Scythe Kaze Flex II 120 PWM separate most on static pressure: be quiet! Silent Wings 4 120mm PWM High-Speed at 3.96 mmH2O, Scythe Kaze Flex II 120 PWM at 0.97 mmH2O, 76% in favour of be quiet! Silent Wings 4 120mm PWM High-Speed. Max Speed splits them by another 52%, again favouring be quiet! Silent Wings 4 120mm PWM High-Speed. They match on 4 other specifications, including fan size, bearing type and pwm control.

be quiet! Silent Wings 4 120mm PWM High-Speed (2500 RPM/76.7 CFM/31.2 dBA/6-Pole Motor/Fluid Dynamic Bearing 300,000hr)
be quiet!be quiet! Silent Wings 4 120mm PWM High-Speed
Scythe Kaze Flex II 120 PWM (120mm/43.71 CFM/1.33 mmH2O Static Pressure/1200 RPM Max/21.8 dBA/Fluid Dynamic Bearing/No RGB/PWM)
ScytheScythe Kaze Flex II 120 PWM

Specs

Specification
be quiet! Silent Wings 4 120mm PWM High-Speed (2500 RPM/76.7 CFM/31.2 dBA/6-Pole Motor/Fluid Dynamic Bearing 300,000hr)
be quiet! Silent Wings 4 120mm PWM High-Speed
Scythe Kaze Flex II 120 PWM (120mm/43.71 CFM/1.33 mmH2O Static Pressure/1200 RPM Max/21.8 dBA/Fluid Dynamic Bearing/No RGB/PWM)
Scythe Kaze Flex II 120 PWM
Fan Size120 mm120 mm
Brandbe quiet!Scythe
ModelSilent Wings 4 120mm PWM High-SpeedKaze Flex II 120 PWM (1200RPM)
Bearing TypeFluid DynamicFluid Dynamic
Fan Thickness25 mm26 mm
Static Pressure3.96 mmH2O0.97 mmH2O-76%
Max Speed2500 RPM1200 RPM-52%
Noise Level31.2 dBA+7.4 dBA23.8 dBA
Airflow76.7 CFM52.94 CFM-31%
PWM ControlYesYes
Rated Life300000 hours120000 hours
Connector Type4-Pin PWM4-Pin PWM
Source URLhttps://www.bequiet.com/en/casefans/3701https://www.scytheus.com/kazeflexii-120

Price comparison

Retailerbe quiet! Silent Wings 4 120mm PWM High-SpeedScythe Kaze Flex II 120 PWM
ScytheView on Scythe

Disclaimer: The price and specification of the given product may differ from the actual product. Please confirm on the retailer's website before buying.

Verdict

be quiet! Silent Wings 4 120mm PWM High-Speed

8 / 10 Expert Rating

More airflow than the quiet-first competition, with a bearing rating built for a decade of running.

Scythe Kaze Flex II 120 PWM

7 / 10 Expert Rating

A dependable, quiet mainstream fan with nothing flashy about it, which is exactly the point.

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