Hardware Spec Index

Brontix FN-9851 Ultra 140mm PWM Case Fan (3-Pack)

Case Fans · Brontix · SKU FN9851-ULTRA · Released 2026 · Updated 2026-10-20

Key facts

Benchmark index325 (Case Fans scale)
Category rank#26,668
Street price$9
Power3 W
Performance per dollar36.11
Released2026

Specifications

BrandBrontix
ModelBrontix FN-9851 Ultra
Size140 × 140 × 25 mm
Speed400–1,700 RPM (PWM)
Airflow81.6 CFM
Static pressure1.61 mmH₂O
Noise28 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-9851 Ultra 140mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/7250445 (accessed 2026-10-20).