SilverStone Shark Force 140 PWM Fan - Quiet, High-Performance Cooling

Our review of the SilverStone Shark Force 140 looks at whether this 140mm PWM fan delivers quiet operation and strong airflow for PC builds. The bottom line: it is best for builders who want a balance of low noise and usable static pressure thanks to the distinctive shark skin blade pattern and a wide 0~2,200 RPM PWM range. The review finds the fan particularly notable for its fluid dynamic bearing and three-phase, six-pole motor design, which together provide durable, quieter operation than many standard case fans.

Key Features

• Shark skin blade design: The integrated shark skin-like surface on each blade smooths airflow over the blade to reduce turbulence and lower audible noise.
• Wide PWM range: PWM control from 0 to 2,200 RPM gives flexible speed control for quieter idle operation and higher airflow under load.
• Three-phase, six-pole motor: The unique motor design runs more quietly and with better energy efficiency compared with typical single-phase, four-pole fans.
• Fluid dynamic bearing: The FDB improves long-term reliability and reduces bearing noise for sustained quiet operation.
• Modular cable design: The modular connector setup simplifies installation and cable management inside the case.

Who It's For

The Shark Force 140 is ideal for PC enthusiasts building mid- to high-end systems who want a quiet intake or exhaust fan with decent static pressure for use on radiators or front intakes. Its broad PWM range makes it a good choice for users who prioritize low idle noise but need headroom for higher airflow during heavy loads.

Users who need extreme airflow for large open-air setups or those seeking RGB lighting should look elsewhere, as this fan focuses on acoustic performance and efficiency rather than lighting effects or maximum CFM numbers.

Pros & Cons

Pros

• Very quiet in normal operation thanks to the shark skin blade texture and FDB.
• Flexible PWM control from 0 to 2,200 RPM supports both silent idle and stronger cooling when needed.
• More efficient and quieter motor operation due to the three-phase, six-pole design.

Cons

• Airflow feedback is mixed among users, so it may not satisfy those demanding the highest measured CFM.

Specifications

Model	SST-SF140B
Size	140mm
Speed Range	0~2,200 RPM (PWM)
Bearing	Fluid Dynamic Bearing
Motor Design	Three-phase, six-pole
Cable	Modular cable design

Our Verdict

The SilverStone Shark Force 140 is a strong option for builders who need a quiet, durable 140mm fan with good control via PWM and improved efficiency from its three-phase, six-pole motor. It represents good value for users seeking quieter operation and reliable bearings, though those chasing top-end raw airflow figures may prefer a different model.

Frequently Asked Questions

Is this fan suitable for radiator use?
The fan's higher static pressure and wide RPM range make it suitable for many radiators, though exact performance depends on the radiator's fins per inch.

How loud is the fan in daily use?
Customers report the fan is very quiet in typical operation, aided by the blade design and fluid dynamic bearing.

Does the fan come with sleeved cables or modular connectors?
The fan uses a modular cable design to simplify connections and cable management inside the case.