Hardware Spec Index

Brontix FN-1881 Ultra 140mm PWM Case Fan

Case Fans · Brontix · SKU FN1881-ULTRA · Released 2021 · Updated 2026-10-26

Key facts

Benchmark index564 (Case Fans scale)
Category rank#25,102
Street price$19
Power2 W
Performance per dollar29.68
Released2021

Specifications

BrandBrontix
ModelBrontix FN-1881 Ultra
Size140 × 140 × 25 mm
Speed300–1,400 RPM (PWM)
Airflow67.2 CFM
Static pressure1.33 mmH₂O
Noise36 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-1881 Ultra 140mm PWM Case Fan”, https://vextor7.com/item/60027107 (accessed 2026-10-26).