Hardware Spec Index

Caldera FN-3840 Ultra 120mm PWM Case Fan

Case Fans · Caldera · SKU FN3840-ULTRA · Released 2019 · Updated 2026-10-19

Key facts

Benchmark index494 (Case Fans scale)
Category rank#31,110
Street price$19
Power3 W
Performance per dollar26.00
Released2019

Specifications

BrandCaldera
ModelCaldera FN-3840 Ultra
Size120 × 120 × 25 mm
Speed500–2,300 RPM (PWM)
Airflow78.2 CFM
Static pressure2.53 mmH₂O
Noise31 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-3840 Ultra 120mm PWM Case Fan”, https://vextor7.com/item/6130099 (accessed 2026-10-19).