Hardware Spec Index

Caldera FN-9781 Ultra 140mm PWM Case Fan

Case Fans · Caldera · SKU FN9781-ULTRA · Released 2022 · Updated 2026-10-21

Key facts

Benchmark index268 (Case Fans scale)
Category rank#44,466
Street price$9
Power3 W
Performance per dollar29.78
Released2022

Specifications

BrandCaldera
ModelCaldera FN-9781 Ultra
Size140 × 140 × 25 mm
Speed200–1,800 RPM (PWM)
Airflow86.4 CFM
Static pressure1.71 mmH₂O
Noise22 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-9781 Ultra 140mm PWM Case Fan”, https://vextor7.com/item/2591827 (accessed 2026-10-21).