Hardware Spec Index

Caldera FN-7581 Prime 140mm PWM Case Fan

Case Fans · Caldera · SKU FN7581-PRIME · Released 2019 · Updated 2026-10-23

Key facts

Benchmark index272 (Case Fans scale)
Category rank#38,172
Street price$9
Power2 W
Performance per dollar30.22
Released2019

Specifications

BrandCaldera
ModelCaldera FN-7581 Prime
Size140 × 140 × 25 mm
Speed400–1,400 RPM (PWM)
Airflow67.2 CFM
Static pressure1.33 mmH₂O
Noise32 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-7581 Prime 140mm PWM Case Fan”, https://vextor7.com/item/16639647 (accessed 2026-10-23).