Hardware Spec Index

Brontix FN-3998 Prime 120mm PWM Case Fan

Case Fans · Brontix · SKU FN3998-PRIME · Released 2021 · Updated 2026-10-23

Key facts

Benchmark index265 (Case Fans scale)
Category rank#40,053
Street price$9
Power4 W
Performance per dollar29.44
Released2021

Specifications

BrandBrontix
ModelBrontix FN-3998 Prime
Size120 × 120 × 25 mm
Speed500–2,700 RPM (PWM)
Airflow91.8 CFM
Static pressure2.97 mmH₂O
Noise25 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-3998 Prime 120mm PWM Case Fan”, https://vextor7.com/item/3564439 (accessed 2026-10-23).