Hardware Spec Index

Brontix FN-9851 Ultra 120mm PWM Case Fan (3-Pack)

Case Fans · Brontix · SKU FN9851-ULTRA · Released 2023 · Updated 2026-10-20

Key facts

Benchmark index570 (Case Fans scale)
Category rank#14,118
Street price$19
Power2 W
Performance per dollar30.00
Released2023

Specifications

BrandBrontix
ModelBrontix FN-9851 Ultra
Size120 × 120 × 25 mm
Speed200–1,400 RPM (PWM)
Airflow47.6 CFM
Static pressure1.54 mmH₂O
Noise23 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-9851 Ultra 120mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/89570 (accessed 2026-10-20).