Hardware Spec Index

Brontix FN-1690 Pro 140mm PWM Case Fan

Case Fans · Brontix · SKU FN1690-PRO · Released 2021 · Updated 2026-10-19

Key facts

Benchmark index397 (Case Fans scale)
Category rank#36,740
Street price$9
Power4 W
Performance per dollar44.11
Released2021

Specifications

BrandBrontix
ModelBrontix FN-1690 Pro
Size140 × 140 × 25 mm
Speed300–2,900 RPM (PWM)
Airflow139.2 CFM
Static pressure2.75 mmH₂O
Noise30 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-1690 Pro 140mm PWM Case Fan”, https://vextor7.com/item/17829902 (accessed 2026-10-19).