Hardware Spec Index

Brontix FN-1891 XT 140mm PWM Case Fan

Case Fans · Brontix · SKU FN1891-XT · Released 2025 · Updated 2026-10-26

Key facts

Benchmark index721 (Case Fans scale)
Category rank#22,488
Street price$19
Power4 W
Performance per dollar37.95
Released2025

Specifications

BrandBrontix
ModelBrontix FN-1891 XT
Size140 × 140 × 25 mm
Speed300–2,900 RPM (PWM)
Airflow139.2 CFM
Static pressure2.75 mmH₂O
Noise30 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-1891 XT 140mm PWM Case Fan”, https://vextor7.com/item/21530467 (accessed 2026-10-26).