Hardware Spec Index

Brontix FN-4639 Ultra 120mm PWM ARGB Case Fan

Case Fans · Brontix · SKU FN4639-ULTRA · Released 2022 · Updated 2026-10-20

Key facts

Benchmark index1,100 (Case Fans scale)
Category rank#17,250
Street price$39
Power4 W
Performance per dollar28.21
Released2022

Specifications

BrandBrontix
ModelBrontix FN-4639 Ultra
Size120 × 120 × 25 mm
Speed400–3,000 RPM (PWM)
Airflow102.0 CFM
Static pressure3.30 mmH₂O
Noise30 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-4639 Ultra 120mm PWM ARGB Case Fan”, https://vextor7.com/item/9166808 (accessed 2026-10-20).