Hardware Spec Index

Brontix FN-1891 Ultra 120mm PWM Case Fan

Case Fans · Brontix · SKU FN1891-ULTRA · Released 2025 · Updated 2026-10-20

Key facts

Benchmark index422 (Case Fans scale)
Category rank#12,954
Street price$19
Power3 W
Performance per dollar22.21
Released2025

Specifications

BrandBrontix
ModelBrontix FN-1891 Ultra
Size120 × 120 × 25 mm
Speed300–1,700 RPM (PWM)
Airflow57.8 CFM
Static pressure1.87 mmH₂O
Noise27 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-1891 Ultra 120mm PWM Case Fan”, https://vextor7.com/item/2998554 (accessed 2026-10-20).