Hardware Spec Index

Caldera FN-3974 Prime 140mm PWM Case Fan

Case Fans · Caldera · SKU FN3974-PRIME · Released 2021 · Updated 2026-10-24

Key facts

Benchmark index451 (Case Fans scale)
Category rank#21,814
Street price$19
Power3 W
Performance per dollar23.74
Released2021

Specifications

BrandCaldera
ModelCaldera FN-3974 Prime
Size140 × 140 × 25 mm
Speed500–2,000 RPM (PWM)
Airflow96.0 CFM
Static pressure1.90 mmH₂O
Noise27 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-3974 Prime 140mm PWM Case Fan”, https://vextor7.com/item/7115157 (accessed 2026-10-24).