Hardware Spec Index

Caldera FN-3857 Pro 120mm PWM Case Fan (3-Pack)

Case Fans · Caldera · SKU FN3857-PRO · Released 2023 · Updated 2026-10-24

Key facts

Benchmark index325 (Case Fans scale)
Category rank#20,043
Street price$9
Power3 W
Performance per dollar36.11
Released2023

Specifications

BrandCaldera
ModelCaldera FN-3857 Pro
Size120 × 120 × 25 mm
Speed200–1,700 RPM (PWM)
Airflow57.8 CFM
Static pressure1.87 mmH₂O
Noise36 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-3857 Pro 120mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/15365751 (accessed 2026-10-24).