Hardware Spec Index

Brontix FN-5231 Ultra 140mm PWM Case Fan (3-Pack)

Case Fans · Brontix · SKU FN5231-ULTRA · Released 2026 · Updated 2026-10-23

Key facts

Benchmark index222 (Case Fans scale)
Category rank#44,970
Street price$9
Power3 W
Performance per dollar24.67
Released2026

Specifications

BrandBrontix
ModelBrontix FN-5231 Ultra
Size140 × 140 × 25 mm
Speed200–1,900 RPM (PWM)
Airflow91.2 CFM
Static pressure1.80 mmH₂O
Noise24 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-5231 Ultra 140mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/3889795 (accessed 2026-10-23).