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Black 120 mm case fan with nine blades and sleeve bearing

Silverstone

Silverstone FN121-P 120 mm case fan 1200 RPM 58.47 CFM 25.15 dBA

SKU CH-D038-M0G74 MPN FN121-P

A 120 mm case fan delivering 58.47 CFM airflow at 25.15 dBA using a 9-bladed sleeve-bearing design

  • TypeCase Fan
  • CompatibilityCase
  • Bearing TypeSleeve
  • RPM1200 +/- 200 RPM
  • Air Flow58.47 CFM
  • Noise Level25.15 dBA max.
  • Delivers 58.47 CFM airflow for efficient case cooling
  • Operates at 25.15 dBA maximum for quiet operation
  • Runs at 1200 RPM with 200 RPM tolerance for stable speeds
  • Nine-bladed design balances high airflow with reduced noise
  • Sleeve bearing provides reliable performance for thermal solutions

Silent Cooling for Compact Builds

The SilverStone FN121-P is a 120 mm case fan designed for standard chassis mounts. Its sleeve bearing and nine-bladed rotor deliver 58.47 CFM of airflow while keeping noise to 25.15 dBA at peak speed. The black frame suits understated system aesthetics.

Steady Airflow Under Continuous Load

At the rated 1200 RPM the fan moves a consistent volume of air across heat-generating components. The sleeve bearing maintains stable rotation during extended operation without the speed variance seen in short bursts. Acoustic output remains at the quoted maximum even when the system runs for hours.

Physical Limits of the 120 mm Standard

The unit fits the 120 x 120 x 25 mm mounting pattern used by most mid-tower and mini-ITX cases. Builders needing higher static pressure for dense radiators or restrictive filters may find the airflow-focused blade profile less effective. The fixed 1200 RPM ceiling also caps thermal headroom in heavily overclocked configurations.

Highlights

  • Delivers 58.47 CFM airflow for efficient case cooling
  • Operates at 25.15 dBA maximum for quiet operation
  • Runs at 1200 RPM with 200 RPM tolerance for stable speeds
  • Nine-bladed design balances high airflow with reduced noise
  • Sleeve bearing provides reliable performance for thermal solutions

Specifications

BrandSilverStone
ModelFN121-P
TypeCase Fan
CompatibilityCase
Bearing TypeSleeve
RPM1200 +/- 200 RPM
Air Flow58.47 CFM
Noise Level25.15 dBA max.
ColorBlack
FeaturesHigh performance for system thermal solution
High airflow and less noise with 9-bladed design
Dimensions120 x 120 x 25mm
Shipping weight0.14 kg
Package size149 × 137 × 30 mm

Questions about this item

How loud is the 1200 RPM fan when it runs all day?

The SilverStone FN121-P reaches 25.15 dBA at full speed, so it stays quiet during continuous operation.

Which motherboard header does the FN121-P need to spin?

It uses a standard 3-pin or 4-pin fan header on the motherboard for power and speed control.

Will the 120 mm frame line up with the mounting holes on my older case?

Yes, the 120 x 120 x 25 mm dimensions match the long-standing 120 mm fan standard used on older cases.

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