Hardware Spec Index

Brontix FN-3951 Ultra 140mm PWM Case Fan (3-Pack)

Case Fans · Brontix · SKU FN3951-ULTRA · Released 2020 · Updated 2026-10-19

Key facts

Benchmark index597 (Case Fans scale)
Category rank#10,933
Street price$19
Power3 W
Performance per dollar31.42
Released2020

Specifications

BrandBrontix
ModelBrontix FN-3951 Ultra
Size140 × 140 × 25 mm
Speed200–2,200 RPM (PWM)
Airflow105.6 CFM
Static pressure2.09 mmH₂O
Noise32 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-3951 Ultra 140mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/7600263 (accessed 2026-10-19).