Hardware Spec Index

Brontix FN-3904 Prime 140mm PWM ARGB Case Fan

Case Fans · Brontix · SKU FN3904-PRIME · Released 2025 · Updated 2026-10-26

Key facts

Benchmark index1,046 (Case Fans scale)
Category rank#42,801
Street price$29
Power4 W
Performance per dollar36.07
Released2025

Specifications

BrandBrontix
ModelBrontix FN-3904 Prime
Size140 × 140 × 25 mm
Speed400–2,500 RPM (PWM)
Airflow120.0 CFM
Static pressure2.38 mmH₂O
Noise22 dBA
BearingFluid dynamic bearing
Connector4-pin PWM + 3-pin 5V ARGB
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-3904 Prime 140mm PWM ARGB Case Fan”, https://vextor7.com/item/98024533 (accessed 2026-10-26).