Hardware Spec Index

Brontix FN-8421 Pro 120mm PWM Case Fan (3-Pack)

Case Fans · Brontix · SKU FN8421-PRO · Released 2022 · Updated 2026-10-20

Key facts

Benchmark index279 (Case Fans scale)
Category rank#43,508
Street price$9
Power4 W
Performance per dollar31.00
Released2022

Specifications

BrandBrontix
ModelBrontix FN-8421 Pro
Size120 × 120 × 25 mm
Speed500–2,900 RPM (PWM)
Airflow98.6 CFM
Static pressure3.19 mmH₂O
Noise29 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-8421 Pro 120mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/95023249 (accessed 2026-10-20).