Hardware Spec Index

Brontix FN-4457 Ultra 140mm PWM Case Fan

Case Fans · Brontix · SKU FN4457-ULTRA · Released 2024 · Updated 2026-10-19

Key facts

Benchmark index664 (Case Fans scale)
Category rank#41,172
Street price$19
Power3 W
Performance per dollar34.95
Released2024

Specifications

BrandBrontix
ModelBrontix FN-4457 Ultra
Size140 × 140 × 25 mm
Speed300–1,500 RPM (PWM)
Airflow72.0 CFM
Static pressure1.43 mmH₂O
Noise30 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-4457 Ultra 140mm PWM Case Fan”, https://vextor7.com/item/6636615 (accessed 2026-10-19).