Hardware Spec Index

Brontix FN-4903 Pro 120mm PWM Case Fan

Case Fans · Brontix · SKU FN4903-PRO · Released 2025 · Updated 2026-10-24

Key facts

Benchmark index474 (Case Fans scale)
Category rank#33,901
Street price$19
Power4 W
Performance per dollar24.95
Released2025

Specifications

BrandBrontix
ModelBrontix FN-4903 Pro
Size120 × 120 × 25 mm
Speed400–2,800 RPM (PWM)
Airflow95.2 CFM
Static pressure3.08 mmH₂O
Noise30 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-4903 Pro 120mm PWM Case Fan”, https://vextor7.com/item/8629882 (accessed 2026-10-24).