Hardware Spec Index

Brontix FN-9975 Pro 120mm PWM Case Fan

Case Fans · Brontix · SKU FN9975-PRO · Released 2019 · Updated 2026-10-22

Key facts

Benchmark index331 (Case Fans scale)
Category rank#36,931
Street price$9
Power4 W
Performance per dollar36.78
Released2019

Specifications

BrandBrontix
ModelBrontix FN-9975 Pro
Size120 × 120 × 25 mm
Speed300–2,700 RPM (PWM)
Airflow91.8 CFM
Static pressure2.97 mmH₂O
Noise25 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-9975 Pro 120mm PWM Case Fan”, https://vextor7.com/item/9564667 (accessed 2026-10-22).