Hardware Spec Index

Brontix FN-9740 XT 140mm PWM Case Fan

Case Fans · Brontix · SKU FN9740-XT · Released 2020 · Updated 2026-10-22

Key facts

Benchmark index656 (Case Fans scale)
Category rank#20,957
Street price$19
Power3 W
Performance per dollar34.53
Released2020

Specifications

BrandBrontix
ModelBrontix FN-9740 XT
Size140 × 140 × 25 mm
Speed400–1,500 RPM (PWM)
Airflow72.0 CFM
Static pressure1.43 mmH₂O
Noise36 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-9740 XT 140mm PWM Case Fan”, https://vextor7.com/item/6401664 (accessed 2026-10-22).