Hardware Spec Index

Brontix FN-3909 Plus 140mm PWM ARGB Case Fan

Case Fans · Brontix · SKU FN3909-PLUS · Released 2021 · Updated 2026-10-23

Key facts

Benchmark index1,001 (Case Fans scale)
Category rank#31,978
Street price$29
Power4 W
Performance per dollar34.52
Released2021

Specifications

BrandBrontix
ModelBrontix FN-3909 Plus
Size140 × 140 × 25 mm
Speed400–2,700 RPM (PWM)
Airflow129.6 CFM
Static pressure2.56 mmH₂O
Noise27 dBA
BearingMagnetic levitation
Connector4-pin PWM + 3-pin 5V ARGB
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-3909 Plus 140mm PWM ARGB Case Fan”, https://vextor7.com/item/1547590 (accessed 2026-10-23).