Seasonic Magflow 120mm Cooling Fan Review – ReCheck!

The Seasonic Magflow was the first fan that I reviewed using the Long Win LW-9266 Fan PQ performance measurement apparatus, so I though to re-test it, using my current methodology which has several improvements over the initial one, including frequency analysis of the output noise. 

The Seasonic MagFlow 120mm starts from $40 for a single piece and goes up to $113 for a 3-pack bundle. This is far from an affordable fan, costing more than the mighty Phanteks T30-120. Besides high build quality and fluid dynamic bearing, the 120mm MagFlow features a magnetic connection system that allows for the easy connection of multiple fans without the need for cabling.


The power cable attaches to the fan magnetically, so it is safe to say that these fans are fully modular. Thanks to a pretty strong magnet, the connectors easily snap in place.

Cybenetics Fans Database


Official Technical Specifications:
  • Model Name: Seasonic MagFlow 1225 PWM
  • Model Number: SF-12025MF-P
  • Connector: 4-pin PWM
  • Fan Speed PWM: 600 – 2000±10% RPM
  • Fan Airflow (Max): 63.33 CFM
  • Static Pressure (Max): 2.61 mm-H2O
  • Fan Noise Level (Max): 33.78 dBA
  • Fan Bearing Type: Fluid Dynamic Bearing
  • Bearing durability: 100,000 hours
  • Fan Rated Voltage: 12 VDC
  • Fan Rated Current: 0.20A
  • Fan Rated Wattage: 2.04W
  • Fan Weight: 212.7 gr
  • Dimensions (W x H x D): 120.4 x 124.2 x 26.6 mm (Fan including magnet and rubber pads)
  • Daisy-Chain Capable: Yes (fully modular cable design)
  • Price (excluding VAT): $40 ($113 for the three-pack)
  • Warranty: 3-years
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