Hardware Spec Index

Brontix FN-1665 Prime 140mm PWM Case Fan

Case Fans · Brontix · SKU FN1665-PRIME · Released 2021 · Updated 2026-10-18

Key facts

Benchmark index552 (Case Fans scale)
Category rank#39,895
Street price$19
Power3 W
Performance per dollar29.05
Released2021

Specifications

BrandBrontix
ModelBrontix FN-1665 Prime
Size140 × 140 × 25 mm
Speed400–1,600 RPM (PWM)
Airflow76.8 CFM
Static pressure1.52 mmH₂O
Noise30 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-1665 Prime 140mm PWM Case Fan”, https://vextor7.com/item/19081476 (accessed 2026-10-18).