Hardware Spec Index

Brontix FN-3987 Pro 140mm PWM Case Fan (3-Pack)

Case Fans · Brontix · SKU FN3987-PRO · Released 2019 · Updated 2026-10-24

Key facts

Benchmark index709 (Case Fans scale)
Category rank#6,184
Street price$19
Power4 W
Performance per dollar37.32
Released2019

Specifications

BrandBrontix
ModelBrontix FN-3987 Pro
Size140 × 140 × 25 mm
Speed200–2,600 RPM (PWM)
Airflow124.8 CFM
Static pressure2.47 mmH₂O
Noise36 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-3987 Pro 140mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/7687522 (accessed 2026-10-24).