Hardware Spec Index

Brontix FN-9739 Ultra 140mm PWM Case Fan

Case Fans · Brontix · SKU FN9739-ULTRA · Released 2026 · Updated 2026-10-21

Key facts

Benchmark index574 (Case Fans scale)
Category rank#12,323
Street price$19
Power3 W
Performance per dollar30.21
Released2026

Specifications

BrandBrontix
ModelBrontix FN-9739 Ultra
Size140 × 140 × 25 mm
Speed500–1,600 RPM (PWM)
Airflow76.8 CFM
Static pressure1.52 mmH₂O
Noise29 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-9739 Ultra 140mm PWM Case Fan”, https://vextor7.com/item/9020902 (accessed 2026-10-21).