Hardware Spec Index

Caldera FN-5521 Pro 120mm PWM Case Fan (3-Pack)

Case Fans · Caldera · SKU FN5521-PRO · Released 2022 · Updated 2026-10-19

Key facts

Benchmark index213 (Case Fans scale)
Category rank#23,402
Street price$9
Power2 W
Performance per dollar23.67
Released2022

Specifications

BrandCaldera
ModelCaldera FN-5521 Pro
Size120 × 120 × 25 mm
Speed500–1,400 RPM (PWM)
Airflow47.6 CFM
Static pressure1.54 mmH₂O
Noise28 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-5521 Pro 120mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/4149263 (accessed 2026-10-19).