Hardware Spec Index

Brontix FN-9921 Plus 120mm PWM Case Fan

Case Fans · Brontix · SKU FN9921-PLUS · Released 2019 · Updated 2026-10-23

Key facts

Benchmark index336 (Case Fans scale)
Category rank#36,691
Street price$9
Power3 W
Performance per dollar37.33
Released2019

Specifications

BrandBrontix
ModelBrontix FN-9921 Plus
Size120 × 120 × 25 mm
Speed500–1,700 RPM (PWM)
Airflow57.8 CFM
Static pressure1.87 mmH₂O
Noise30 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-9921 Plus 120mm PWM Case Fan”, https://vextor7.com/item/8950206 (accessed 2026-10-23).