Hardware Spec Index

Brontix FN-2856 Prime 140mm PWM Case Fan (3-Pack)

Case Fans · Brontix · SKU FN2856-PRIME · Released 2020 · Updated 2026-10-25

Key facts

Benchmark index705 (Case Fans scale)
Category rank#32,966
Street price$19
Power4 W
Performance per dollar37.11
Released2020

Specifications

BrandBrontix
ModelBrontix FN-2856 Prime
Size140 × 140 × 25 mm
Speed400–2,900 RPM (PWM)
Airflow139.2 CFM
Static pressure2.75 mmH₂O
Noise35 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-2856 Prime 140mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/1446596 (accessed 2026-10-25).