Hardware Spec Index

Brontix FN-9640 Prime 120mm PWM Case Fan (3-Pack)

Case Fans · Brontix · SKU FN9640-PRIME · Released 2023 · Updated 2026-10-22

Key facts

Benchmark index768 (Case Fans scale)
Category rank#3,805
Street price$29
Power4 W
Performance per dollar26.48
Released2023

Specifications

BrandBrontix
ModelBrontix FN-9640 Prime
Size120 × 120 × 25 mm
Speed500–2,700 RPM (PWM)
Airflow91.8 CFM
Static pressure2.97 mmH₂O
Noise36 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-9640 Prime 120mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/3228728 (accessed 2026-10-22).