Hardware Spec Index

Brontix FN-9991 XT 120mm PWM Case Fan

Case Fans · Brontix · SKU FN9991-XT · Released 2023 · Updated 2026-10-19

Key facts

Benchmark index275 (Case Fans scale)
Category rank#38,829
Street price$9
Power2 W
Performance per dollar30.56
Released2023

Specifications

BrandBrontix
ModelBrontix FN-9991 XT
Size120 × 120 × 25 mm
Speed400–1,400 RPM (PWM)
Airflow47.6 CFM
Static pressure1.54 mmH₂O
Noise33 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-9991 XT 120mm PWM Case Fan”, https://vextor7.com/item/645474 (accessed 2026-10-19).