Hardware Spec Index

Brontix FN-2391 Ultra 120mm PWM Case Fan (3-Pack)

Case Fans · Brontix · SKU FN2391-ULTRA · Released 2026 · Updated 2026-10-22

Key facts

Benchmark index257 (Case Fans scale)
Category rank#2,472
Street price$9
Power4 W
Performance per dollar28.56
Released2026

Specifications

BrandBrontix
ModelBrontix FN-2391 Ultra
Size120 × 120 × 25 mm
Speed300–3,000 RPM (PWM)
Airflow102.0 CFM
Static pressure3.30 mmH₂O
Noise32 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-2391 Ultra 120mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/2216902 (accessed 2026-10-22).