Hardware Spec Index

Brontix FN-4770 Ultra 120mm PWM Case Fan

Case Fans · Brontix · SKU FN4770-ULTRA · Released 2025 · Updated 2026-10-20

Key facts

Benchmark index323 (Case Fans scale)
Category rank#19,273
Street price$9
Power4 W
Performance per dollar35.89
Released2025

Specifications

BrandBrontix
ModelBrontix FN-4770 Ultra
Size120 × 120 × 25 mm
Speed300–2,600 RPM (PWM)
Airflow88.4 CFM
Static pressure2.86 mmH₂O
Noise26 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-4770 Ultra 120mm PWM Case Fan”, https://vextor7.com/item/92946724 (accessed 2026-10-20).