Hardware Spec Index

Brontix FN-3691 Pro 120mm PWM ARGB Case Fan (3-Pack)

Case Fans · Brontix · SKU FN3691-PRO · Released 2025 · Updated 2026-10-26

Key facts

Benchmark index803 (Case Fans scale)
Category rank#30,693
Street price$29
Power4 W
Performance per dollar27.69
Released2025

Specifications

BrandBrontix
ModelBrontix FN-3691 Pro
Size120 × 120 × 25 mm
Speed500–2,500 RPM (PWM)
Airflow85.0 CFM
Static pressure2.75 mmH₂O
Noise23 dBA
BearingMagnetic levitation
Connector4-pin PWM + 3-pin 5V ARGB
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-3691 Pro 120mm PWM ARGB Case Fan (3-Pack)”, https://vextor7.com/item/4556749 (accessed 2026-10-26).