Hardware Spec Index

Caldera FN-4305 Ultra 140mm PWM Case Fan

Case Fans · Caldera · SKU FN4305-ULTRA · Released 2025 · Updated 2026-10-21

Key facts

Benchmark index604 (Case Fans scale)
Category rank#16,175
Street price$19
Power3 W
Performance per dollar31.79
Released2025

Specifications

BrandCaldera
ModelCaldera FN-4305 Ultra
Size140 × 140 × 25 mm
Speed300–2,300 RPM (PWM)
Airflow110.4 CFM
Static pressure2.19 mmH₂O
Noise30 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-4305 Ultra 140mm PWM Case Fan”, https://vextor7.com/item/21585326 (accessed 2026-10-21).