Hardware Spec Index

Brontix FN-6643 Ultra 120mm PWM Case Fan

Case Fans · Brontix · SKU FN6643-ULTRA · Released 2025 · Updated 2026-10-24

Key facts

Benchmark index491 (Case Fans scale)
Category rank#42,231
Street price$19
Power4 W
Performance per dollar25.84
Released2025

Specifications

BrandBrontix
ModelBrontix FN-6643 Ultra
Size120 × 120 × 25 mm
Speed500–2,800 RPM (PWM)
Airflow95.2 CFM
Static pressure3.08 mmH₂O
Noise26 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-6643 Ultra 120mm PWM Case Fan”, https://vextor7.com/item/840510 (accessed 2026-10-24).