Silent operation

Sigma Pro series are very silent thanks to modern HBS bearing (Hydraulic Bearing System)

Sigma Pro 120 is silent fan made mainly for PC cases. Thanks to standarized, 120 mm frame Sigma Pro fan has broad compatibility list. Precisely engineered blades provide improved airflow and silent operation.

  • Ultra-silent operation
  • stylish look
  • Smooth and reliable HBS bearing
  • anti-vibration pads
  • Fully-sleeved black cable
  • 3-pin connector

Classic look

The fan’s classic black color matches most cases and its coated power cable enables to maintain an efficient cable arrangement and is easy to lay.


The set also includes silicone pads for screws which reduce vibration.


(Click to zoom. Actual dimensions may vary.)

Technical specification

  • Product code:SPC133
  • EAN:5904730204286
  • Product type:120 mm fan
  • Size (mm):120×120×25
  • Bearing type:HBS (Hydraulic)
  • Fan speed (RPM):1200 ±10%
  • Rated voltage - Fan (V):12
  • Rated current - Fan (A):0.10
  • MTBF (h):50 000
  • Connector:3 PIN
  • NET WEIGHT [g]:117
  • GROSS WEIGHT [g]:143
  • BOX DIMENSIONS [mm]:174×125×28

    Set includes

    • 1 × Sigma PRO 120 fan
    • screws
    • silicone pads

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    - Marcin, SilentiumPC expert