Hardware Spec Index

Caldera FN-5791 Ultra 140mm PWM Case Fan (3-Pack)

Case Fans · Caldera · SKU FN5791-ULTRA · Released 2022 · Updated 2026-10-21

Key facts

Benchmark index704 (Case Fans scale)
Category rank#29,485
Street price$19
Power3 W
Performance per dollar37.05
Released2022

Specifications

BrandCaldera
ModelCaldera FN-5791 Ultra
Size140 × 140 × 25 mm
Speed400–2,100 RPM (PWM)
Airflow100.8 CFM
Static pressure2.00 mmH₂O
Noise29 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-5791 Ultra 140mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/7969153 (accessed 2026-10-21).