Hardware Spec Index

Caldera FN-4581 Plus 140mm PWM Case Fan

Case Fans · Caldera · SKU FN4581-PLUS · Released 2022 · Updated 2026-10-21

Key facts

Benchmark index515 (Case Fans scale)
Category rank#40,640
Street price$19
Power3 W
Performance per dollar27.11
Released2022

Specifications

BrandCaldera
ModelCaldera FN-4581 Plus
Size140 × 140 × 25 mm
Speed400–2,000 RPM (PWM)
Airflow96.0 CFM
Static pressure1.90 mmH₂O
Noise36 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-4581 Plus 140mm PWM Case Fan”, https://vextor7.com/item/529629 (accessed 2026-10-21).