Hardware Spec Index

Brontix FN-3661 Prime 140mm PWM Case Fan

Case Fans · Brontix · SKU FN3661-PRIME · Released 2021 · Updated 2026-10-19

Key facts

Benchmark index716 (Case Fans scale)
Category rank#49,651
Street price$19
Power3 W
Performance per dollar37.68
Released2021

Specifications

BrandBrontix
ModelBrontix FN-3661 Prime
Size140 × 140 × 25 mm
Speed400–1,900 RPM (PWM)
Airflow91.2 CFM
Static pressure1.80 mmH₂O
Noise33 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-3661 Prime 140mm PWM Case Fan”, https://vextor7.com/item/3408763 (accessed 2026-10-19).