Hardware Spec Index

Brontix FN-3993 Ultra 120mm PWM Case Fan (3-Pack)

Case Fans · Brontix · SKU FN3993-ULTRA · Released 2023 · Updated 2026-10-25

Key facts

Benchmark index802 (Case Fans scale)
Category rank#20,515
Street price$19
Power4 W
Performance per dollar42.21
Released2023

Specifications

BrandBrontix
ModelBrontix FN-3993 Ultra
Size120 × 120 × 25 mm
Speed500–2,500 RPM (PWM)
Airflow85.0 CFM
Static pressure2.75 mmH₂O
Noise36 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-3993 Ultra 120mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/3468408 (accessed 2026-10-25).