Hardware Spec Index

Brontix FN-9721 Plus 140mm PWM ARGB Case Fan

Case Fans · Brontix · SKU FN9721-PLUS · Released 2020 · Updated 2026-10-26

Key facts

Benchmark index1,187 (Case Fans scale)
Category rank#12,999
Street price$39
Power4 W
Performance per dollar30.44
Released2020

Specifications

BrandBrontix
ModelBrontix FN-9721 Plus
Size140 × 140 × 25 mm
Speed400–3,000 RPM (PWM)
Airflow144.0 CFM
Static pressure2.85 mmH₂O
Noise30 dBA
BearingFluid dynamic bearing
Connector4-pin PWM + 3-pin 5V ARGB
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-9721 Plus 140mm PWM ARGB Case Fan”, https://vextor7.com/item/9681210 (accessed 2026-10-26).