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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 size120 mm
  • Number of fans1 Fan
  • Bearing designFluid Dynamic
  • Rotational speed2,500 RPM
  • Product typeCase Fan
  • Product 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.

How it compares

Measured against everything we stock in PC Cooling Fans, at today’s prices. Recalculated every night.

Price $19.99
Typical for this category: the median of 8,339 items is $19.99.
Fan size 120 mm
Typical for this category: the median of 1,114 items is 120 mm.

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Specifications

Product
Brand nameSilverStone
Product typeCase Fan
Product colorBlack
Performance
Rotational speed2,500 RPM
Size & build
Fan size120 mm
Number of fans1 Fan
Bearing designFluid Dynamic
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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