Hardware Spec Index

Brontix FN-4647 XT 120mm PWM Case Fan (3-Pack)

Case Fans · Brontix · SKU FN4647-XT · Released 2019 · Updated 2026-10-21

Key facts

Benchmark index579 (Case Fans scale)
Category rank#33,366
Street price$19
Power3 W
Performance per dollar30.47
Released2019

Specifications

BrandBrontix
ModelBrontix FN-4647 XT
Size120 × 120 × 25 mm
Speed400–2,200 RPM (PWM)
Airflow74.8 CFM
Static pressure2.42 mmH₂O
Noise31 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-4647 XT 120mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/6448414 (accessed 2026-10-21).