Hardware Spec Index

Brontix FN-3870 Edge 140mm PWM Case Fan

Case Fans · Brontix · SKU FN3870-EDGE · Released 2020 · Updated 2026-10-25

Key facts

Benchmark index538 (Case Fans scale)
Category rank#16,758
Street price$19
Power4 W
Performance per dollar28.32
Released2020

Specifications

BrandBrontix
ModelBrontix FN-3870 Edge
Size140 × 140 × 25 mm
Speed400–2,700 RPM (PWM)
Airflow129.6 CFM
Static pressure2.56 mmH₂O
Noise33 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-3870 Edge 140mm PWM Case Fan”, https://vextor7.com/item/89450915 (accessed 2026-10-25).