Hardware Spec Index

Brontix FN-4989 Prime 140mm PWM Case Fan

Case Fans · Brontix · SKU FN4989-PRIME · Released 2020 · Updated 2026-10-20

Key facts

Benchmark index673 (Case Fans scale)
Category rank#47,069
Street price$19
Power3 W
Performance per dollar35.42
Released2020

Specifications

BrandBrontix
ModelBrontix FN-4989 Prime
Size140 × 140 × 25 mm
Speed400–2,300 RPM (PWM)
Airflow110.4 CFM
Static pressure2.19 mmH₂O
Noise27 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-4989 Prime 140mm PWM Case Fan”, https://vextor7.com/item/4870174 (accessed 2026-10-20).