Hardware Spec Index

Caldera FN-3904 Pro 140mm PWM Case Fan

Case Fans · Caldera · SKU FN3904-PRO · Released 2021 · Updated 2026-10-24

Key facts

Benchmark index537 (Case Fans scale)
Category rank#16,944
Street price$19
Power3 W
Performance per dollar28.26
Released2021

Specifications

BrandCaldera
ModelCaldera FN-3904 Pro
Size140 × 140 × 25 mm
Speed300–1,500 RPM (PWM)
Airflow72.0 CFM
Static pressure1.43 mmH₂O
Noise29 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-3904 Pro 140mm PWM Case Fan”, https://vextor7.com/item/5743776 (accessed 2026-10-24).