Hardware Spec Index

Brontix FN-4645 Ultra 120mm PWM Case Fan (3-Pack)

Case Fans · Brontix · SKU FN4645-ULTRA · Released 2022 · Updated 2026-10-19

Key facts

Benchmark index428 (Case Fans scale)
Category rank#19,352
Street price$19
Power3 W
Performance per dollar22.53
Released2022

Specifications

BrandBrontix
ModelBrontix FN-4645 Ultra
Size120 × 120 × 25 mm
Speed200–1,500 RPM (PWM)
Airflow51.0 CFM
Static pressure1.65 mmH₂O
Noise29 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-4645 Ultra 120mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/10690538 (accessed 2026-10-19).