Hardware Spec Index

Caldera FN-3705 Ultra 140mm PWM Case Fan

Case Fans · Caldera · SKU FN3705-ULTRA · Released 2019 · Updated 2026-10-19

Key facts

Benchmark index196 (Case Fans scale)
Category rank#13,988
Street price$9
Power4 W
Performance per dollar21.78
Released2019

Specifications

BrandCaldera
ModelCaldera FN-3705 Ultra
Size140 × 140 × 25 mm
Speed200–3,000 RPM (PWM)
Airflow144.0 CFM
Static pressure2.85 mmH₂O
Noise33 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-3705 Ultra 140mm PWM Case Fan”, https://vextor7.com/item/6552085 (accessed 2026-10-19).