Hardware Spec Index

Brontix FN-3643 Ultra 120mm PWM ARGB Case Fan

Case Fans · Brontix · SKU FN3643-ULTRA · Released 2021 · Updated 2026-10-19

Key facts

Benchmark index1,171 (Case Fans scale)
Category rank#26,272
Street price$39
Power3 W
Performance per dollar30.03
Released2021

Specifications

BrandBrontix
ModelBrontix FN-3643 Ultra
Size120 × 120 × 25 mm
Speed500–1,900 RPM (PWM)
Airflow64.6 CFM
Static pressure2.09 mmH₂O
Noise23 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-3643 Ultra 120mm PWM ARGB Case Fan”, https://vextor7.com/item/16144754 (accessed 2026-10-19).