Hardware Spec Index

Brontix FN-4728 Ultra 140mm PWM Case Fan

Case Fans · Brontix · SKU FN4728-ULTRA · Released 2021 · Updated 2026-10-21

Key facts

Benchmark index444 (Case Fans scale)
Category rank#23,879
Street price$19
Power3 W
Performance per dollar23.37
Released2021

Specifications

BrandBrontix
ModelBrontix FN-4728 Ultra
Size140 × 140 × 25 mm
Speed400–2,400 RPM (PWM)
Airflow115.2 CFM
Static pressure2.28 mmH₂O
Noise35 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-4728 Ultra 140mm PWM Case Fan”, https://vextor7.com/item/4885787 (accessed 2026-10-21).