Hardware Spec Index

Brontix FN-4257 Plus 140mm PWM Case Fan (3-Pack)

Case Fans · Brontix · SKU FN4257-PLUS · Released 2025 · Updated 2026-10-23

Key facts

Benchmark index796 (Case Fans scale)
Category rank#27,125
Street price$29
Power4 W
Performance per dollar27.45
Released2025

Specifications

BrandBrontix
ModelBrontix FN-4257 Plus
Size140 × 140 × 25 mm
Speed400–2,800 RPM (PWM)
Airflow134.4 CFM
Static pressure2.66 mmH₂O
Noise33 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-4257 Plus 140mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/377920 (accessed 2026-10-23).