Hardware Spec Index

Caldera FN-4255 Ultra 120mm PWM Case Fan

Case Fans · Caldera · SKU FN4255-ULTRA · Released 2019 · Updated 2026-10-25

Key facts

Benchmark index201 (Case Fans scale)
Category rank#15,682
Street price$9
Power4 W
Performance per dollar22.33
Released2019

Specifications

BrandCaldera
ModelCaldera FN-4255 Ultra
Size120 × 120 × 25 mm
Speed200–3,000 RPM (PWM)
Airflow102.0 CFM
Static pressure3.30 mmH₂O
Noise24 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-4255 Ultra 120mm PWM Case Fan”, https://vextor7.com/item/526879 (accessed 2026-10-25).