Hardware Spec Index

Brontix FN-3647 Prime 140mm PWM ARGB Case Fan (3-Pack)

Case Fans · Brontix · SKU FN3647-PRIME · Released 2024 · Updated 2026-10-25

Key facts

Benchmark index1,082 (Case Fans scale)
Category rank#23,172
Street price$39
Power4 W
Performance per dollar27.74
Released2024

Specifications

BrandBrontix
ModelBrontix FN-3647 Prime
Size140 × 140 × 25 mm
Speed400–2,800 RPM (PWM)
Airflow134.4 CFM
Static pressure2.66 mmH₂O
Noise35 dBA
BearingMagnetic levitation
Connector4-pin PWM + 3-pin 5V ARGB
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-3647 Prime 140mm PWM ARGB Case Fan (3-Pack)”, https://vextor7.com/item/52328821 (accessed 2026-10-25).