Hardware Spec Index

Caldera FN-3945 Prime 140mm PWM Case Fan

Case Fans · Caldera · SKU FN3945-PRIME · Released 2024 · Updated 2026-10-19

Key facts

Benchmark index421 (Case Fans scale)
Category rank#19,659
Street price$9
Power4 W
Performance per dollar46.78
Released2024

Specifications

BrandCaldera
ModelCaldera FN-3945 Prime
Size140 × 140 × 25 mm
Speed400–2,900 RPM (PWM)
Airflow139.2 CFM
Static pressure2.75 mmH₂O
Noise34 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-3945 Prime 140mm PWM Case Fan”, https://vextor7.com/item/20008208 (accessed 2026-10-19).