Hardware Spec Index

Brontix FN-3721 SE 140mm PWM ARGB Case Fan (3-Pack)

Case Fans · Brontix · SKU FN3721-SE · Released 2021 · Updated 2026-10-20

Key facts

Benchmark index1,042 (Case Fans scale)
Category rank#35,537
Street price$39
Power4 W
Performance per dollar26.72
Released2021

Specifications

BrandBrontix
ModelBrontix FN-3721 SE
Size140 × 140 × 25 mm
Speed500–2,800 RPM (PWM)
Airflow134.4 CFM
Static pressure2.66 mmH₂O
Noise36 dBA
BearingFluid dynamic bearing
Connector4-pin PWM + 3-pin 5V ARGB
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-3721 SE 140mm PWM ARGB Case Fan (3-Pack)”, https://vextor7.com/item/5085907 (accessed 2026-10-20).