Hardware Spec Index

Brontix FN-4784 Ultra 140mm PWM Case Fan

Case Fans · Brontix · SKU FN4784-ULTRA · Released 2022 · Updated 2026-10-23

Key facts

Benchmark index474 (Case Fans scale)
Category rank#28,217
Street price$19
Power3 W
Performance per dollar24.95
Released2022

Specifications

BrandBrontix
ModelBrontix FN-4784 Ultra
Size140 × 140 × 25 mm
Speed200–1,700 RPM (PWM)
Airflow81.6 CFM
Static pressure1.61 mmH₂O
Noise35 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-4784 Ultra 140mm PWM Case Fan”, https://vextor7.com/item/98694011 (accessed 2026-10-23).