Hardware Spec Index

Caldera FN-4578 XT 140mm PWM Case Fan

Case Fans · Caldera · SKU FN4578-XT · Released 2023 · Updated 2026-10-20

Key facts

Benchmark index366 (Case Fans scale)
Category rank#49,580
Street price$9
Power4 W
Performance per dollar40.67
Released2023

Specifications

BrandCaldera
ModelCaldera FN-4578 XT
Size140 × 140 × 25 mm
Speed200–2,900 RPM (PWM)
Airflow139.2 CFM
Static pressure2.75 mmH₂O
Noise27 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-4578 XT 140mm PWM Case Fan”, https://vextor7.com/item/4640422 (accessed 2026-10-20).