Hardware Spec Index

Caldera FN-6521 SE 140mm PWM Case Fan

Case Fans · Caldera · SKU FN6521-SE · Released 2020 · Updated 2026-10-26

Key facts

Benchmark index199 (Case Fans scale)
Category rank#42,692
Street price$9
Power4 W
Performance per dollar22.11
Released2020

Specifications

BrandCaldera
ModelCaldera FN-6521 SE
Size140 × 140 × 25 mm
Speed400–2,600 RPM (PWM)
Airflow124.8 CFM
Static pressure2.47 mmH₂O
Noise35 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-6521 SE 140mm PWM Case Fan”, https://vextor7.com/item/21454321 (accessed 2026-10-26).