Hardware Spec Index

Brontix FN-3998 Ultra 120mm PWM ARGB Case Fan (3-Pack)

Case Fans · Brontix · SKU FN3998-ULTRA · Released 2023 · Updated 2026-10-21

Key facts

Benchmark index910 (Case Fans scale)
Category rank#49,889
Street price$29
Power3 W
Performance per dollar31.38
Released2023

Specifications

BrandBrontix
ModelBrontix FN-3998 Ultra
Size120 × 120 × 25 mm
Speed400–1,900 RPM (PWM)
Airflow64.6 CFM
Static pressure2.09 mmH₂O
Noise25 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-3998 Ultra 120mm PWM ARGB Case Fan (3-Pack)”, https://vextor7.com/item/8364799 (accessed 2026-10-21).