Hardware Spec Index

Brontix FN-2991 Pro 140mm PWM Case Fan

Case Fans · Brontix · SKU FN2991-PRO · Released 2024 · Updated 2026-10-22

Key facts

Benchmark index614 (Case Fans scale)
Category rank#23,192
Street price$19
Power3 W
Performance per dollar32.32
Released2024

Specifications

BrandBrontix
ModelBrontix FN-2991 Pro
Size140 × 140 × 25 mm
Speed400–2,100 RPM (PWM)
Airflow100.8 CFM
Static pressure2.00 mmH₂O
Noise22 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-2991 Pro 140mm PWM Case Fan”, https://vextor7.com/item/74893832 (accessed 2026-10-22).