Hardware Spec Index

Brontix FN-9739 Prime 140mm PWM Case Fan

Case Fans · Brontix · SKU FN9739-PRIME · Released 2026 · Updated 2026-10-26

Key facts

Benchmark index299 (Case Fans scale)
Category rank#36,041
Street price$9
Power4 W
Performance per dollar33.22
Released2026

Specifications

BrandBrontix
ModelBrontix FN-9739 Prime
Size140 × 140 × 25 mm
Speed200–2,700 RPM (PWM)
Airflow129.6 CFM
Static pressure2.56 mmH₂O
Noise31 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-9739 Prime 140mm PWM Case Fan”, https://vextor7.com/item/8963890 (accessed 2026-10-26).