Hardware Spec Index

Brontix FN-4756 Ultra 120mm PWM Case Fan (3-Pack)

Case Fans · Brontix · SKU FN4756-ULTRA · Released 2023 · Updated 2026-10-18

Key facts

Benchmark index690 (Case Fans scale)
Category rank#7,265
Street price$19
Power3 W
Performance per dollar36.32
Released2023

Specifications

BrandBrontix
ModelBrontix FN-4756 Ultra
Size120 × 120 × 25 mm
Speed500–1,700 RPM (PWM)
Airflow57.8 CFM
Static pressure1.87 mmH₂O
Noise35 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-4756 Ultra 120mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/7707331 (accessed 2026-10-18).