Hardware Spec Index

Brontix FN-8643 Ultra 140mm PWM Case Fan

Case Fans · Brontix · SKU FN8643-ULTRA · Released 2019 · Updated 2026-10-25

Key facts

Benchmark index271 (Case Fans scale)
Category rank#38,657
Street price$9
Power2 W
Performance per dollar30.11
Released2019

Specifications

BrandBrontix
ModelBrontix FN-8643 Ultra
Size140 × 140 × 25 mm
Speed400–1,400 RPM (PWM)
Airflow67.2 CFM
Static pressure1.33 mmH₂O
Noise24 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-8643 Ultra 140mm PWM Case Fan”, https://vextor7.com/item/41491519 (accessed 2026-10-25).