Hardware Spec Index

Brontix FN-5891 Prime 120mm PWM Case Fan

Case Fans · Brontix · SKU FN5891-PRIME · Released 2023 · Updated 2026-10-20

Key facts

Benchmark index323 (Case Fans scale)
Category rank#12,016
Street price$9
Power4 W
Performance per dollar35.89
Released2023

Specifications

BrandBrontix
ModelBrontix FN-5891 Prime
Size120 × 120 × 25 mm
Speed400–2,600 RPM (PWM)
Airflow88.4 CFM
Static pressure2.86 mmH₂O
Noise23 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-5891 Prime 120mm PWM Case Fan”, https://vextor7.com/item/20111542 (accessed 2026-10-20).