Hardware Spec Index

Brontix FN-3747 Ultra 140mm PWM ARGB Case Fan

Case Fans · Brontix · SKU FN3747-ULTRA · Released 2024 · Updated 2026-10-22

Key facts

Benchmark index1,400 (Case Fans scale)
Category rank#43,276
Street price$49
Power4 W
Performance per dollar28.57
Released2024

Specifications

BrandBrontix
ModelBrontix FN-3747 Ultra
Size140 × 140 × 25 mm
Speed400–2,600 RPM (PWM)
Airflow124.8 CFM
Static pressure2.47 mmH₂O
Noise25 dBA
BearingMagnetic levitation
Connector4-pin PWM + 3-pin 5V ARGB
Rated lifetime100,000 hours

Related guides

AIO Liquid Cooling vs Air Cooling for CPUs

Similar Case Fans

ModelBenchmarkPriceCompare
Corvane FN-4970 Ultra 120mm PWM Case Fan561$19Compare
Brontix FN-8801 Core 120mm PWM ARGB Case Fan980$29Compare
Teralux FN-7865 Ultra 120mm PWM ARGB Case Fan884$29Compare
Corvane FN-4969 SE 120mm PWM Case Fan577$19Compare
Brontix FN-9009 SE 120mm PWM Case Fan691$19Compare
Brontix FN-1422 Edge 120mm PWM ARGB Case Fan1,296$39Compare

All Case Fans · JSON

Cite this page: Hardware Spec Index, “Brontix FN-3747 Ultra 140mm PWM ARGB Case Fan”, https://vextor7.com/item/63252189 (accessed 2026-10-22).