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Black 120mm case fan with shark-tooth blade pattern and modular cable

Silverstone Technology

Silverstone Technology SF120B 120mm 2500 RPM case fan

SKU CH-Z1H7-9K6F8 MPN SF120B

A 120 mm case fan with a Shark Force blade design, fluid dynamic bearing and PWM control up to 2500 RPM for quiet, high-performance cooling

  • Fan Counts1 Fan
  • TypeCase Fan
  • Fan Size120mm
  • Bearing TypeFluid Dynamic
  • RPM2500 RPM
  • ColorBlack
  • Shark Force blade design cuts noise while boosting airflow
  • PWM control spans 0 to 2500 RPM for silent idle and full speed
  • Three-phase six-pole motor runs smoother and quieter than typical four-pole units
  • Fluid Dynamic Bearing extends operating life with reliable performance
  • Modular cable system simplifies routing and keeps builds tidy

120 mm PWM case fan

The Silverstone Technology SF120B is a single 120 mm case fan built for system builders who need adjustable airflow in a standard mounting size. Its fluid dynamic bearing and modular cable design suit both new assemblies and upgrades where cable routing space is tight.

Thermals noise and power draw

A 0 to 2500 RPM range via PWM lets the fan run near silent at idle while still moving significant air when temperatures rise. The three-phase six-pole motor and Shark Force blade profile reduce turbulence, so typical operation stays quiet without sacrificing cooling capacity.

Sustained load behaviour

Under continuous demand the six-pole design maintains stable torque and consistent speed, avoiding the vibration spikes common in simpler four-pole units. Fluid dynamic bearing lubrication preserves acoustic performance over long running periods, keeping airflow steady during extended workloads.

Highlights

  • Shark Force blade design cuts noise while boosting airflow
  • PWM control spans 0 to 2500 RPM for silent idle and full speed
  • Three-phase six-pole motor runs smoother and quieter than typical four-pole units
  • Fluid Dynamic Bearing extends operating life with reliable performance
  • Modular cable system simplifies routing and keeps builds tidy

Specifications

BrandSilverStone
Fan Counts1 Fan
TypeCase Fan
Fan Size120mm
Bearing TypeFluid Dynamic
RPM2500 RPM
ColorBlack
Shipping weight0.23 kg
Package size127 × 127 × 51 mm

Questions about this item

How do I install the Silverstone SF120B and which step is often missed?

Mount the 120mm fan using the four corner screws, then connect the modular PWM cable to the motherboard header; the modular cable must be plugged into the fan first, a step builders sometimes skip.

What maintenance or replacement will the Silverstone SF120B need later?

The Fluid Dynamic Bearing is rated for long life and requires no lubrication; if noise or vibration appears after years of use, replace the entire fan unit.

What limit appears first on the Silverstone SF120B during sustained high-speed operation?

At 2500 RPM the motor hits its maximum speed; the three-phase six-pole design and Shark Force blades are built to maintain airflow without exceeding that ceiling.

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