Hardware Spec Index

Caldera FN-3857 Prime 120mm PWM Case Fan

Case Fans · Caldera · SKU FN3857-PRIME · Released 2024 · Updated 2026-10-23

Key facts

Benchmark index762 (Case Fans scale)
Category rank#39,197
Street price$29
Power4 W
Performance per dollar26.28
Released2024

Specifications

BrandCaldera
ModelCaldera FN-3857 Prime
Size120 × 120 × 25 mm
Speed400–2,700 RPM (PWM)
Airflow91.8 CFM
Static pressure2.97 mmH₂O
Noise35 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-3857 Prime 120mm PWM Case Fan”, https://vextor7.com/item/7309994 (accessed 2026-10-23).