Hardware Spec Index

Brontix FN-5857 Prime 140mm PWM Case Fan (3-Pack)

Case Fans · Brontix · SKU FN5857-PRIME · Released 2024 · Updated 2026-10-25

Key facts

Benchmark index584 (Case Fans scale)
Category rank#33,979
Street price$19
Power4 W
Performance per dollar30.74
Released2024

Specifications

BrandBrontix
ModelBrontix FN-5857 Prime
Size140 × 140 × 25 mm
Speed300–3,000 RPM (PWM)
Airflow144.0 CFM
Static pressure2.85 mmH₂O
Noise27 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-5857 Prime 140mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/94814719 (accessed 2026-10-25).