Hardware Spec Index

Caldera FN-4181 Prime 120mm PWM Case Fan (3-Pack)

Case Fans · Caldera · SKU FN4181-PRIME · Released 2021 · Updated 2026-10-19

Key facts

Benchmark index358 (Case Fans scale)
Category rank#41,275
Street price$9
Power3 W
Performance per dollar39.78
Released2021

Specifications

BrandCaldera
ModelCaldera FN-4181 Prime
Size120 × 120 × 25 mm
Speed300–1,900 RPM (PWM)
Airflow64.6 CFM
Static pressure2.09 mmH₂O
Noise25 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-4181 Prime 120mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/3676922 (accessed 2026-10-19).