Hardware Spec Index

Brontix FN-9721 Ti 140mm PWM Case Fan

Case Fans · Brontix · SKU FN9721-TI · Released 2025 · Updated 2026-10-21

Key facts

Benchmark index251 (Case Fans scale)
Category rank#17,852
Street price$9
Power3 W
Performance per dollar27.89
Released2025

Specifications

BrandBrontix
ModelBrontix FN-9721 Ti
Size140 × 140 × 25 mm
Speed400–1,700 RPM (PWM)
Airflow81.6 CFM
Static pressure1.61 mmH₂O
Noise32 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-9721 Ti 140mm PWM Case Fan”, https://vextor7.com/item/7123063 (accessed 2026-10-21).