Hardware Spec Index

Brontix FN-3891 SE 120mm PWM Case Fan

Case Fans · Brontix · SKU FN3891-SE · Released 2022 · Updated 2026-10-25

Key facts

Benchmark index277 (Case Fans scale)
Category rank#46,827
Street price$9
Power3 W
Performance per dollar30.78
Released2022

Specifications

BrandBrontix
ModelBrontix FN-3891 SE
Size120 × 120 × 25 mm
Speed200–1,500 RPM (PWM)
Airflow51.0 CFM
Static pressure1.65 mmH₂O
Noise35 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-3891 SE 120mm PWM Case Fan”, https://vextor7.com/item/8044029 (accessed 2026-10-25).