Hardware Spec Index

Brontix FN-5981 Ultra 140mm PWM Case Fan

Case Fans · Brontix · SKU FN5981-ULTRA · Released 2026 · Updated 2026-10-19

Key facts

Benchmark index262 (Case Fans scale)
Category rank#7,601
Street price$9
Power3 W
Performance per dollar29.11
Released2026

Specifications

BrandBrontix
ModelBrontix FN-5981 Ultra
Size140 × 140 × 25 mm
Speed200–1,700 RPM (PWM)
Airflow81.6 CFM
Static pressure1.61 mmH₂O
Noise35 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-5981 Ultra 140mm PWM Case Fan”, https://vextor7.com/item/9705488 (accessed 2026-10-19).