Hardware Spec Index

Brontix FN-5709 Prime 140mm PWM Case Fan

Case Fans · Brontix · SKU FN5709-PRIME · Released 2024 · Updated 2026-10-23

Key facts

Benchmark index675 (Case Fans scale)
Category rank#42,687
Street price$19
Power3 W
Performance per dollar35.53
Released2024

Specifications

BrandBrontix
ModelBrontix FN-5709 Prime
Size140 × 140 × 25 mm
Speed400–2,400 RPM (PWM)
Airflow115.2 CFM
Static pressure2.28 mmH₂O
Noise26 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-5709 Prime 140mm PWM Case Fan”, https://vextor7.com/item/19686949 (accessed 2026-10-23).