Hardware Spec Index

Brontix FN-5851 Prime 140mm PWM Case Fan

Case Fans · Brontix · SKU FN5851-PRIME · Released 2022 · Updated 2026-10-26

Key facts

Benchmark index745 (Case Fans scale)
Category rank#37,440
Street price$19
Power3 W
Performance per dollar39.21
Released2022

Specifications

BrandBrontix
ModelBrontix FN-5851 Prime
Size140 × 140 × 25 mm
Speed300–2,200 RPM (PWM)
Airflow105.6 CFM
Static pressure2.09 mmH₂O
Noise32 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-5851 Prime 140mm PWM Case Fan”, https://vextor7.com/item/94091850 (accessed 2026-10-26).