Hardware Spec Index

Caldera FN-3391 Pro 120mm PWM Case Fan

Case Fans · Caldera · SKU FN3391-PRO · Released 2019 · Updated 2026-10-25

Key facts

Benchmark index193 (Case Fans scale)
Category rank#41,901
Street price$9
Power3 W
Performance per dollar21.44
Released2019

Specifications

BrandCaldera
ModelCaldera FN-3391 Pro
Size120 × 120 × 25 mm
Speed200–1,500 RPM (PWM)
Airflow51.0 CFM
Static pressure1.65 mmH₂O
Noise23 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-3391 Pro 120mm PWM Case Fan”, https://vextor7.com/item/19920563 (accessed 2026-10-25).