Hardware Spec Index

Brontix FN-3840 SE 120mm PWM ARGB Case Fan

Case Fans · Brontix · SKU FN3840-SE · Released 2024 · Updated 2026-10-18

Key facts

Benchmark index902 (Case Fans scale)
Category rank#13,137
Street price$29
Power3 W
Performance per dollar31.10
Released2024

Specifications

BrandBrontix
ModelBrontix FN-3840 SE
Size120 × 120 × 25 mm
Speed500–2,200 RPM (PWM)
Airflow74.8 CFM
Static pressure2.42 mmH₂O
Noise27 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-3840 SE 120mm PWM ARGB Case Fan”, https://vextor7.com/item/91556629 (accessed 2026-10-18).