Hardware Spec Index

Caldera FN-6491 Pro 140mm PWM Case Fan (3-Pack)

Case Fans · Caldera · SKU FN6491-PRO · Released 2025 · Updated 2026-10-20

Key facts

Benchmark index248 (Case Fans scale)
Category rank#8,106
Street price$9
Power3 W
Performance per dollar27.56
Released2025

Specifications

BrandCaldera
ModelCaldera FN-6491 Pro
Size140 × 140 × 25 mm
Speed500–2,100 RPM (PWM)
Airflow100.8 CFM
Static pressure2.00 mmH₂O
Noise24 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-6491 Pro 140mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/4729434 (accessed 2026-10-20).