Hardware Spec Index

Caldera FN-4491 Prime 140mm PWM Case Fan (3-Pack)

Case Fans · Caldera · SKU FN4491-PRIME · Released 2022 · Updated 2026-10-26

Key facts

Benchmark index323 (Case Fans scale)
Category rank#44,812
Street price$9
Power3 W
Performance per dollar35.89
Released2022

Specifications

BrandCaldera
ModelCaldera FN-4491 Prime
Size140 × 140 × 25 mm
Speed300–1,800 RPM (PWM)
Airflow86.4 CFM
Static pressure1.71 mmH₂O
Noise24 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-4491 Prime 140mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/6544216 (accessed 2026-10-26).