Hardware Spec Index

Caldera FN-8391 Prime 140mm PWM Case Fan

Case Fans · Caldera · SKU FN8391-PRIME · Released 2022 · Updated 2026-10-22

Key facts

Benchmark index743 (Case Fans scale)
Category rank#35,517
Street price$19
Power3 W
Performance per dollar39.11
Released2022

Specifications

BrandCaldera
ModelCaldera FN-8391 Prime
Size140 × 140 × 25 mm
Speed400–1,600 RPM (PWM)
Airflow76.8 CFM
Static pressure1.52 mmH₂O
Noise23 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-8391 Prime 140mm PWM Case Fan”, https://vextor7.com/item/4491128 (accessed 2026-10-22).