Hardware Spec Index

Brontix FN-3677 Ultra 140mm PWM Case Fan (3-Pack)

Case Fans · Brontix · SKU FN3677-ULTRA · Released 2020 · Updated 2026-10-20

Key facts

Benchmark index350 (Case Fans scale)
Category rank#25,980
Street price$19
Power3 W
Performance per dollar18.42
Released2020

Specifications

BrandBrontix
ModelBrontix FN-3677 Ultra
Size140 × 140 × 25 mm
Speed200–2,400 RPM (PWM)
Airflow115.2 CFM
Static pressure2.28 mmH₂O
Noise36 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-3677 Ultra 140mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/35450709 (accessed 2026-10-20).