Hardware Spec Index

Brontix FN-9971 Ultra 120mm PWM Case Fan (3-Pack)

Case Fans · Brontix · SKU FN9971-ULTRA · Released 2024 · Updated 2026-10-18

Key facts

Benchmark index302 (Case Fans scale)
Category rank#14,111
Street price$9
Power3 W
Performance per dollar33.56
Released2024

Specifications

BrandBrontix
ModelBrontix FN-9971 Ultra
Size120 × 120 × 25 mm
Speed300–2,400 RPM (PWM)
Airflow81.6 CFM
Static pressure2.64 mmH₂O
Noise35 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-9971 Ultra 120mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/67296 (accessed 2026-10-18).