Hardware Spec Index

Brontix FN-4784 Ultra 140mm PWM Case Fan

Case Fans · Brontix · SKU FN4784-ULTRA · Released 2024 · Updated 2026-10-24

Key facts

Benchmark index522 (Case Fans scale)
Category rank#6,901
Street price$19
Power4 W
Performance per dollar27.47
Released2024

Specifications

BrandBrontix
ModelBrontix FN-4784 Ultra
Size140 × 140 × 25 mm
Speed200–2,900 RPM (PWM)
Airflow139.2 CFM
Static pressure2.75 mmH₂O
Noise30 dBA
BearingRifle bearing
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/1782578 (accessed 2026-10-24).