Hardware Spec Index

Brontix FN-7731 Prime 120mm PWM Case Fan (3-Pack)

Case Fans · Brontix · SKU FN7731-PRIME · Released 2019 · Updated 2026-10-21

Key facts

Benchmark index254 (Case Fans scale)
Category rank#46,000
Street price$9
Power2 W
Performance per dollar28.22
Released2019

Specifications

BrandBrontix
ModelBrontix FN-7731 Prime
Size120 × 120 × 25 mm
Speed500–1,400 RPM (PWM)
Airflow47.6 CFM
Static pressure1.54 mmH₂O
Noise33 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-7731 Prime 120mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/82946444 (accessed 2026-10-21).