Hardware Spec Index

Caldera FN-2558 Ultra 140mm PWM Case Fan

Case Fans · Caldera · SKU FN2558-ULTRA · Released 2023 · Updated 2026-10-19

Key facts

Benchmark index358 (Case Fans scale)
Category rank#15,479
Street price$9
Power3 W
Performance per dollar39.78
Released2023

Specifications

BrandCaldera
ModelCaldera FN-2558 Ultra
Size140 × 140 × 25 mm
Speed500–1,900 RPM (PWM)
Airflow91.2 CFM
Static pressure1.80 mmH₂O
Noise27 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-2558 Ultra 140mm PWM Case Fan”, https://vextor7.com/item/7065340 (accessed 2026-10-19).