Hardware Spec Index

Caldera FN-5681 Ultra 120mm PWM Case Fan (3-Pack)

Case Fans · Caldera · SKU FN5681-ULTRA · Released 2021 · Updated 2026-10-24

Key facts

Benchmark index422 (Case Fans scale)
Category rank#47,301
Street price$9
Power2 W
Performance per dollar46.89
Released2021

Specifications

BrandCaldera
ModelCaldera FN-5681 Ultra
Size120 × 120 × 25 mm
Speed500–1,400 RPM (PWM)
Airflow47.6 CFM
Static pressure1.54 mmH₂O
Noise26 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-5681 Ultra 120mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/84897280 (accessed 2026-10-24).