Hardware Spec Index

Brontix FN-3854 Prime 140mm PWM Case Fan

Case Fans · Brontix · SKU FN3854-PRIME · Released 2020 · Updated 2026-10-20

Key facts

Benchmark index444 (Case Fans scale)
Category rank#43,776
Street price$19
Power4 W
Performance per dollar23.37
Released2020

Specifications

BrandBrontix
ModelBrontix FN-3854 Prime
Size140 × 140 × 25 mm
Speed300–2,800 RPM (PWM)
Airflow134.4 CFM
Static pressure2.66 mmH₂O
Noise33 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-3854 Prime 140mm PWM Case Fan”, https://vextor7.com/item/1362332 (accessed 2026-10-20).