Hardware Spec Index

Brontix FN-4978 Pro 120mm PWM Case Fan

Case Fans · Brontix · SKU FN4978-PRO · Released 2024 · Updated 2026-10-21

Key facts

Benchmark index764 (Case Fans scale)
Category rank#10,912
Street price$19
Power4 W
Performance per dollar40.21
Released2024

Specifications

BrandBrontix
ModelBrontix FN-4978 Pro
Size120 × 120 × 25 mm
Speed200–2,500 RPM (PWM)
Airflow85.0 CFM
Static pressure2.75 mmH₂O
Noise34 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-4978 Pro 120mm PWM Case Fan”, https://vextor7.com/item/13629419 (accessed 2026-10-21).