Hardware Spec Index

Caldera FN-3641 Ultra 120mm PWM Case Fan

Case Fans · Caldera · SKU FN3641-ULTRA · Released 2023 · Updated 2026-10-26

Key facts

Benchmark index337 (Case Fans scale)
Category rank#20,287
Street price$9
Power3 W
Performance per dollar37.44
Released2023

Specifications

BrandCaldera
ModelCaldera FN-3641 Ultra
Size120 × 120 × 25 mm
Speed300–1,700 RPM (PWM)
Airflow57.8 CFM
Static pressure1.87 mmH₂O
Noise30 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-3641 Ultra 120mm PWM Case Fan”, https://vextor7.com/item/2816577 (accessed 2026-10-26).