Hardware Spec Index

Brontix FN-7991 XT 140mm PWM Case Fan

Case Fans · Brontix · SKU FN7991-XT · Released 2026 · Updated 2026-10-26

Key facts

Benchmark index723 (Case Fans scale)
Category rank#15,918
Street price$19
Power3 W
Performance per dollar38.05
Released2026

Specifications

BrandBrontix
ModelBrontix FN-7991 XT
Size140 × 140 × 25 mm
Speed200–1,800 RPM (PWM)
Airflow86.4 CFM
Static pressure1.71 mmH₂O
Noise27 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-7991 XT 140mm PWM Case Fan”, https://vextor7.com/item/3500776 (accessed 2026-10-26).