Hardware Spec Index

Brontix FN-9981 Ultra 140mm PWM Case Fan (3-Pack)

Case Fans · Brontix · SKU FN9981-ULTRA · Released 2019 · Updated 2026-10-20

Key facts

Benchmark index508 (Case Fans scale)
Category rank#6,528
Street price$19
Power3 W
Performance per dollar26.74
Released2019

Specifications

BrandBrontix
ModelBrontix FN-9981 Ultra
Size140 × 140 × 25 mm
Speed400–2,300 RPM (PWM)
Airflow110.4 CFM
Static pressure2.19 mmH₂O
Noise32 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-9981 Ultra 140mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/91786004 (accessed 2026-10-20).