Hardware Spec Index

Brontix FN-3663 Ultra 140mm PWM Case Fan (3-Pack)

Case Fans · Brontix · SKU FN3663-ULTRA · Released 2022 · Updated 2026-10-22

Key facts

Benchmark index517 (Case Fans scale)
Category rank#20,326
Street price$19
Power4 W
Performance per dollar27.21
Released2022

Specifications

BrandBrontix
ModelBrontix FN-3663 Ultra
Size140 × 140 × 25 mm
Speed400–2,800 RPM (PWM)
Airflow134.4 CFM
Static pressure2.66 mmH₂O
Noise31 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-3663 Ultra 140mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/1106852 (accessed 2026-10-22).