Hardware Spec Index

Brontix FN-6391 Prime 120mm PWM Case Fan (3-Pack)

Case Fans · Brontix · SKU FN6391-PRIME · Released 2021 · Updated 2026-10-23

Key facts

Benchmark index492 (Case Fans scale)
Category rank#4,762
Street price$19
Power2 W
Performance per dollar25.89
Released2021

Specifications

BrandBrontix
ModelBrontix FN-6391 Prime
Size120 × 120 × 25 mm
Speed500–1,400 RPM (PWM)
Airflow47.6 CFM
Static pressure1.54 mmH₂O
Noise27 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-6391 Prime 120mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/4986231 (accessed 2026-10-23).