Hardware Spec Index

Brontix FN-9978 Ultra 120mm PWM Case Fan

Case Fans · Brontix · SKU FN9978-ULTRA · Released 2024 · Updated 2026-10-20

Key facts

Benchmark index469 (Case Fans scale)
Category rank#49,391
Street price$9
Power4 W
Performance per dollar52.11
Released2024

Specifications

BrandBrontix
ModelBrontix FN-9978 Ultra
Size120 × 120 × 25 mm
Speed300–2,600 RPM (PWM)
Airflow88.4 CFM
Static pressure2.86 mmH₂O
Noise28 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-9978 Ultra 120mm PWM Case Fan”, https://vextor7.com/item/5597779 (accessed 2026-10-20).