Hardware Spec Index

Brontix FN-4939 Ultra 120mm PWM ARGB Case Fan

Case Fans · Brontix · SKU FN4939-ULTRA · Released 2021 · Updated 2026-10-20

Key facts

Benchmark index1,189 (Case Fans scale)
Category rank#4,732
Street price$39
Power3 W
Performance per dollar30.49
Released2021

Specifications

BrandBrontix
ModelBrontix FN-4939 Ultra
Size120 × 120 × 25 mm
Speed200–2,300 RPM (PWM)
Airflow78.2 CFM
Static pressure2.53 mmH₂O
Noise26 dBA
BearingRifle bearing
Connector4-pin PWM + 3-pin 5V ARGB
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-4939 Ultra 120mm PWM ARGB Case Fan”, https://vextor7.com/item/83672120 (accessed 2026-10-20).