Hardware Spec Index

Brontix FN-9639 Ultra 120mm PWM Case Fan

Case Fans · Brontix · SKU FN9639-ULTRA · Released 2024 · Updated 2026-10-23

Key facts

Benchmark index668 (Case Fans scale)
Category rank#42,641
Street price$19
Power3 W
Performance per dollar35.16
Released2024

Specifications

BrandBrontix
ModelBrontix FN-9639 Ultra
Size120 × 120 × 25 mm
Speed300–1,700 RPM (PWM)
Airflow57.8 CFM
Static pressure1.87 mmH₂O
Noise32 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-9639 Ultra 120mm PWM Case Fan”, https://vextor7.com/item/44550739 (accessed 2026-10-23).