Hardware Spec Index

Caldera FN-4390 Ultra 140mm PWM Case Fan

Case Fans · Caldera · SKU FN4390-ULTRA · Released 2026 · Updated 2026-10-19

Key facts

Benchmark index471 (Case Fans scale)
Category rank#31,144
Street price$19
Power4 W
Performance per dollar24.79
Released2026

Specifications

BrandCaldera
ModelCaldera FN-4390 Ultra
Size140 × 140 × 25 mm
Speed500–2,700 RPM (PWM)
Airflow129.6 CFM
Static pressure2.56 mmH₂O
Noise35 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-4390 Ultra 140mm PWM Case Fan”, https://vextor7.com/item/3147300 (accessed 2026-10-19).