Hardware Spec Index

Brontix FN-4731 Prime 140mm PWM ARGB Case Fan

Case Fans · Brontix · SKU FN4731-PRIME · Released 2021 · Updated 2026-10-20

Key facts

Benchmark index875 (Case Fans scale)
Category rank#8,145
Street price$29
Power3 W
Performance per dollar30.17
Released2021

Specifications

BrandBrontix
ModelBrontix FN-4731 Prime
Size140 × 140 × 25 mm
Speed300–1,700 RPM (PWM)
Airflow81.6 CFM
Static pressure1.61 mmH₂O
Noise35 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-4731 Prime 140mm PWM ARGB Case Fan”, https://vextor7.com/item/1700295 (accessed 2026-10-20).