Hardware Spec Index

Brontix FN-9640 Ultra 120mm PWM Case Fan

Case Fans · Brontix · SKU FN9640-ULTRA · Released 2026 · Updated 2026-10-21

Key facts

Benchmark index345 (Case Fans scale)
Category rank#1,851
Street price$9
Power3 W
Performance per dollar38.33
Released2026

Specifications

BrandBrontix
ModelBrontix FN-9640 Ultra
Size120 × 120 × 25 mm
Speed400–1,800 RPM (PWM)
Airflow61.2 CFM
Static pressure1.98 mmH₂O
Noise33 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-9640 Ultra 120mm PWM Case Fan”, https://vextor7.com/item/6251473 (accessed 2026-10-21).