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Cooler Master SickleFlow 120FAN

FANCase Fans·Cooler Master

Cooler Master SickleFlow 120

4.3
Shed ScoreEditorial rating out of 5, based on specs, build quality and value in its class.
  • Affordable ARGB lighting
  • Balanced airflow performance
  • Quiet reliable operation

The Cooler Master SickleFlow 120 remains one of the best budget-friendly case fans for PC builders wanting solid airflow and attractive ARGB lighting without breaking the bank.

  • Fan Size120 x 120 x 25mm
  • Bearing TypeLoop Dynamic Bearing (LDB)
  • Fan Speed650-1800 RPM
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// Datasheet

Technical specifications

SICKLEFLOW-120-FAN5 fields
Fan Size120 x 120 x 25mm
Bearing TypeLoop Dynamic Bearing (LDB)
Fan Speed650-1800 RPM
Airflow62 CFM max
Noise Level8-27 dBA

// Verdict

Our take

4.3

The Cooler Master SickleFlow 120 remains one of the best budget-friendly case fans for PC builders wanting solid airflow and attractive ARGB lighting without breaking the bank. While it doesn't outperform premium fans in extreme static pressure scenarios, its reliability, quiet performance, and affordable price make it a staple recommendation for entry-level and mid-range builds.

// Trade-offs

Pros and cons

+What we like

  • Excellent price-to-performance ratio
  • Compatible with most major motherboard ARGB headers (5V 3-pin)
  • Quiet operation even at higher RPMs
  • Easy installation with standard 120mm mounting
  • Attractive lighting effects for budget builds
  • Durable bearing rated for long-term use

−Watch out for

  • ARGB controller cable management can be messy
  • Light diffusion less vibrant than premium competitors
  • Limited to single fan color temperature per LED
  • Static pressure not ideal for very dense radiators
  • Included controller feels slightly cheap

// Feature set

Key features

  • 01Frosted translucent fan blades for balanced lighting diffusion
  • 024 customizable ARGB LEDs with 8 unique light effects
  • 03Loop Dynamic Bearing for extended lifespan
  • 04Exclusive hybrid fan blade design for airflow and static pressure balance
  • 05Smart fan control via included ARGB controller or motherboard sync
  • 06Anti-vibration rubber pads on mounting corners

// Long read

Full review

The Cooler Master SickleFlow 120 is a staple case fan for PC builders who want reliable airflow without breaking the budget, and it has earned its reputation as one of the best-selling fans in the custom PC space for good reason. Built around a 120mm frame with the signature sickle-shaped blade design, this fan is engineered to move air efficiently while keeping noise levels in check. The translucent frame houses a set of static, non-customizable RGB LEDs in most versions, casting a smooth ring of color that adds visual flair to any build without requiring a separate controller or software, making it an easy plug-and-play upgrade for both first-time builders and seasoned enthusiasts refreshing their airflow setup.

Performance-wise, the SickleFlow 120 strikes a practical balance between airflow and static pressure, which means it works well whether mounted as an intake fan pulling fresh air into the case or paired with a radiator for liquid cooling setups. The fan blades are shaped to funnel air through tighter spaces like heatsink fins or radiator cores while still delivering solid volume for general case ventilation. Cooler Master rates these fans for long-term durability thanks to a rifle bearing design, which tends to run quieter than cheaper sleeve-bearing alternatives and holds up well over extended use, giving builders peace of mind that the fans will keep performing long after the initial install.

From a practical standpoint, the SickleFlow 120 is designed to be accessible, with standard 120mm mounting points that fit virtually any mid-tower or full-tower case, along with a basic 3-pin or 4-pin PWM connector depending on the version purchased. This makes it simple to integrate into existing motherboard fan headers without needing proprietary hubs or adapters, and the PWM variants allow for responsive speed control tied directly to system temperatures. Whether someone is building a budget-friendly rig, upgrading stock case fans, or adding supplemental cooling to a custom loop, the SickleFlow 120 remains a go-to choice for its blend of affordability, dependable airflow, and understated RGB styling that fits cleanly into a wide range of case aesthetics.

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