Hardware Spec Index

Caldera FN-3478 Ultra 140mm PWM Case Fan (3-Pack)

Case Fans · Caldera · SKU FN3478-ULTRA · Released 2021 · Updated 2026-10-20

Key facts

Benchmark index333 (Case Fans scale)
Category rank#14,266
Street price$9
Power3 W
Performance per dollar37.00
Released2021

Specifications

BrandCaldera
ModelCaldera FN-3478 Ultra
Size140 × 140 × 25 mm
Speed400–2,300 RPM (PWM)
Airflow110.4 CFM
Static pressure2.19 mmH₂O
Noise27 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-3478 Ultra 140mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/2892292 (accessed 2026-10-20).