Hardware Spec Index

Brontix FN-3747 Prime 140mm PWM ARGB Case Fan

Case Fans · Brontix · SKU FN3747-PRIME · Released 2021 · Updated 2026-10-21

Key facts

Benchmark index991 (Case Fans scale)
Category rank#4,598
Street price$39
Power3 W
Performance per dollar25.41
Released2021

Specifications

BrandBrontix
ModelBrontix FN-3747 Prime
Size140 × 140 × 25 mm
Speed500–2,100 RPM (PWM)
Airflow100.8 CFM
Static pressure2.00 mmH₂O
Noise35 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-3747 Prime 140mm PWM ARGB Case Fan”, https://vextor7.com/item/17366165 (accessed 2026-10-21).