Hardware Spec Index

Brontix FN-4990 Ultra 140mm PWM Case Fan

Case Fans · Brontix · SKU FN4990-ULTRA · Released 2026 · Updated 2026-10-25

Key facts

Benchmark index405 (Case Fans scale)
Category rank#8,697
Street price$19
Power4 W
Performance per dollar21.32
Released2026

Specifications

BrandBrontix
ModelBrontix FN-4990 Ultra
Size140 × 140 × 25 mm
Speed300–2,800 RPM (PWM)
Airflow134.4 CFM
Static pressure2.66 mmH₂O
Noise35 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-4990 Ultra 140mm PWM Case Fan”, https://vextor7.com/item/56588341 (accessed 2026-10-25).