Hardware Spec Index

Caldera FN-4575 Ultra 140mm PWM Case Fan (3-Pack)

Case Fans · Caldera · SKU FN4575-ULTRA · Released 2025 · Updated 2026-10-21

Key facts

Benchmark index222 (Case Fans scale)
Category rank#19,419
Street price$9
Power2 W
Performance per dollar24.67
Released2025

Specifications

BrandCaldera
ModelCaldera FN-4575 Ultra
Size140 × 140 × 25 mm
Speed400–1,400 RPM (PWM)
Airflow67.2 CFM
Static pressure1.33 mmH₂O
Noise26 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-4575 Ultra 140mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/6934236 (accessed 2026-10-21).