Hardware Spec Index

Caldera FN-3939 Prime 140mm PWM Case Fan

Case Fans · Caldera · SKU FN3939-PRIME · Released 2021 · Updated 2026-10-21

Key facts

Benchmark index555 (Case Fans scale)
Category rank#29,401
Street price$19
Power2 W
Performance per dollar29.21
Released2021

Specifications

BrandCaldera
ModelCaldera FN-3939 Prime
Size140 × 140 × 25 mm
Speed400–1,400 RPM (PWM)
Airflow67.2 CFM
Static pressure1.33 mmH₂O
Noise29 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-3939 Prime 140mm PWM Case Fan”, https://vextor7.com/item/6767352 (accessed 2026-10-21).