Hardware Spec Index

Brontix FN-4251 Pro 140mm PWM Case Fan

Case Fans · Brontix · SKU FN4251-PRO · Released 2024 · Updated 2026-10-26

Key facts

Benchmark index339 (Case Fans scale)
Category rank#42,629
Street price$9
Power4 W
Performance per dollar37.67
Released2024

Specifications

BrandBrontix
ModelBrontix FN-4251 Pro
Size140 × 140 × 25 mm
Speed300–2,600 RPM (PWM)
Airflow124.8 CFM
Static pressure2.47 mmH₂O
Noise34 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-4251 Pro 140mm PWM Case Fan”, https://vextor7.com/item/4933439 (accessed 2026-10-26).