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Grey 120mm square case fan with nine blades, black frame, four-pin PWM connector

Noctua

Noctua NF-S12B redux-1200 PWM 120mm 1200 RPM 4-pin case fan

SKU CH-T6Z7-2TE20 MPN NF-S12B redux-1200 PWM

120 mm PWM case fan spins at 1200 RPM, moves 100,6 m³/h at 18,1 dB(A) with SSO bearing rated beyond 150,000 hours

  • Fan Counts1 Fan
  • Fan ControllerNo Controller
  • TypeCase Fan
  • Fan Size120x120x25 mm
  • Fan Thickness25mm
  • Bearing TypeSSO
  • 1200 RPM PWM speed control balances cooling and noise
  • 1 dB(A) acoustic rating keeps systems quiet
  • 100,6 m³/h airflow moves air through cases
  • SSO bearing with 150,000 hour MTBF ensures longevity
  • 4-pin connector enables automatic motherboard fan control

NF-S12B redux 120mm PWM fan

The Noctua NF-S12B redux-1200 PWM is a 120mm case fan built for quiet chassis ventilation. It uses the proven NF-S12B blade design with an SSO bearing and a 4-pin PWM connector for automatic motherboard speed control. The streamlined redux edition delivers trusted Noctua quality at an accessible price point.

Suited for low-impedance case airflow

This fan suits builders who want low-noise intake or exhaust in cases with unrestricted airflow paths. Buyers who need high static pressure for dense radiators or restrictive filters should look at something else. The package includes the fan and four mounting screws only.

1200 RPM maximum speed

The single specification that decides fit is the 1200 RPM ceiling. It sets the upper bound for airflow and noise so you can judge whether the balance matches your thermal targets and acoustic limits.

Highlights

  • 1200 RPM PWM speed control balances cooling and noise
  • 1 dB(A) acoustic rating keeps systems quiet
  • 100,6 m³/h airflow moves air through cases
  • SSO bearing with 150,000 hour MTBF ensures longevity
  • 4-pin connector enables automatic motherboard fan control

Specifications

BrandNoctua
ModelNF-S12B redux-1200 PWM
Fan Counts1 Fan
Fan ControllerNo Controller
TypeCase Fan
Fan Size120x120x25 mm
Fan Thickness25mm
Bearing TypeSSO
RPM1200 RPM
Air Flow100,6 m³/h
Noise Level18,1 dB(A)
Power Connector4 Pin
FeaturesMax. Input Power: 0,9 W
Max. Input Current: 0,075 A
Voltage: 12 V
MTBF: > 150.000 h
Scope of Delivery:
Fan
4 Fan Screws
Shipping weight0.24 kg
Package size178 × 168 × 33 mm

Questions about this item

How do I mount this 120x120x25 mm fan in my case and which direction should the airflow arrow point?

Align the four screw holes with your case fan mounts, insert the supplied screws through the frame and tighten; the arrow on the side indicates airflow direction — point it toward the interior for intake or toward the exhaust vent for outtake.

What upkeep does the SSO bearing need over its 150000 hour MTBF rating?

The SSO bearing is sealed and maintenance-free; occasional dust removal from the blades and frame with compressed air is all that is required.

At what point does the 18.1 dB(A) noise level become the limiting factor during sustained 1200 RPM operation?

The 18.1 dB(A) rating is measured at full 1200 RPM, so audible noise is the first limit you encounter before thermal or bearing constraints appear.

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