Hardware Spec Index

Caldera FN-6421 Pro 120mm PWM Case Fan

Case Fans · Caldera · SKU FN6421-PRO · Released 2019 · Updated 2026-10-19

Key facts

Benchmark index496 (Case Fans scale)
Category rank#27,819
Street price$19
Power3 W
Performance per dollar26.11
Released2019

Specifications

BrandCaldera
ModelCaldera FN-6421 Pro
Size120 × 120 × 25 mm
Speed300–1,700 RPM (PWM)
Airflow57.8 CFM
Static pressure1.87 mmH₂O
Noise31 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-6421 Pro 120mm PWM Case Fan”, https://vextor7.com/item/18502425 (accessed 2026-10-19).