Product Comparison: Rosewill RFX-120BL vs Noctua NF-A12x25 FLX

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General Specifications
NF-A12x25 FLX
About the Product
If you need to move lots of air the Rosewill RFX120 is the way to go. With 43.5 to 87.5CFM at 1200-2200RPM controlled by a rear panel mounted controller it will move as much air as you need it to. Its 2 ball bearing motor gives it the durability to keep your computer cool for a long time to come.
The 3-pin FLX version provides 2000/1700/1350rpm speed settings via the supplied Low-Noise Adaptors so as to give full flexibility in configuring the fan for maximum cooling capacity or near-silent acoustics.
Key Specs
Max. Airflow
87.5 CFM
60.09 CFM
2200 RPM
2000 RPM
Fan Bearing Technology
SSO2 Bearing
What customers say about "Key Specs"
Rosewill RFX-120BL 120mm Case Fan
  • The fans have good airflow.
  • They are quiet, have 3 pin, airflow markings etc.
  • Great option for airflow within case.
  • Great product. Lots of airflow.
  • Even at max rpm the airflow is not very strong.
Noctua NF-A12x25 FLX Premium Quiet Fan
  • Airflow through the radiator is amazing.
  • It's superior airflow and lower noise levels.
  • It pulls a hell of a lot of air. Has amazing amount of accessories.
  • They have amazing airflow and a tremendous amount of static pressure.
  • It moves a lot of air with good static pressure and at low noise.
Size & Weight
4.72 in.
4.72 in.
4.72 in.
4.72 in.
0.98 in.
0.98 in.
6.1 oz.
6.4 oz.
Number of Coolers
Noise Level
38.15 dB
22.6 dB
Power Connector Type
Ultra-bright LEDs, Fan Speed Controller, Fan Grill
Flow Acceleration Channels, Ultra-tight tip clearance, AAO frame, Integrated anti-vibration pads
What customers say about "Features"
Rosewill RFX-120BL 120mm Case Fan
  • Super quiet fans and my amp never overheats.
  • These fans are extremely quiet and appear well built.
  • Even when they power up to full speed they're still really quiet.
  • They move a good amount of air and are fairly quiet.
  • Quiet and connected easily to my power supply.
Noctua NF-A12x25 FLX Premium Quiet Fan
  • These are amazing. Even at top speed, they are very low noise.
  • They are super high quality, and the gasket works perfectly.
  • This Noctua fan is as quiet at 2000 RPM as the Arctic Cooling fans at 1500 RPM!
  • This is a good fan, it's quiet, too quiet.
  • The fans are wonderful, quiet, and they include so many accessories for it.
Warranty / Certifications
Manufacturer Warranty
1 year(s)
6 year(s)
Other Information

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