Hardware Spec Index

Caldera FN-3791 Ultra 140mm PWM Case Fan (3-Pack)

Case Fans · Caldera · SKU FN3791-ULTRA · Released 2020 · Updated 2026-10-22

Key facts

Benchmark index341 (Case Fans scale)
Category rank#41,624
Street price$9
Power4 W
Performance per dollar37.89
Released2020

Specifications

BrandCaldera
ModelCaldera FN-3791 Ultra
Size140 × 140 × 25 mm
Speed400–2,600 RPM (PWM)
Airflow124.8 CFM
Static pressure2.47 mmH₂O
Noise35 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-3791 Ultra 140mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/8973304 (accessed 2026-10-22).