Hardware Spec Index

Brontix FN-4646 Ultra 140mm PWM Case Fan (3-Pack)

Case Fans · Brontix · SKU FN4646-ULTRA · Released 2024 · Updated 2026-10-23

Key facts

Benchmark index662 (Case Fans scale)
Category rank#18,796
Street price$19
Power4 W
Performance per dollar34.84
Released2024

Specifications

BrandBrontix
ModelBrontix FN-4646 Ultra
Size140 × 140 × 25 mm
Speed500–2,800 RPM (PWM)
Airflow134.4 CFM
Static pressure2.66 mmH₂O
Noise22 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-4646 Ultra 140mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/87043 (accessed 2026-10-23).