Hardware Spec Index

Brontix FN-4758 Ultra 140mm PWM Case Fan

Case Fans · Brontix · SKU FN4758-ULTRA · Released 2021 · Updated 2026-10-24

Key facts

Benchmark index664 (Case Fans scale)
Category rank#4,095
Street price$19
Power3 W
Performance per dollar34.95
Released2021

Specifications

BrandBrontix
ModelBrontix FN-4758 Ultra
Size140 × 140 × 25 mm
Speed400–1,800 RPM (PWM)
Airflow86.4 CFM
Static pressure1.71 mmH₂O
Noise36 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-4758 Ultra 140mm PWM Case Fan”, https://vextor7.com/item/4387530 (accessed 2026-10-24).