Hardware Spec Index

Brontix FN-3997 Prime 140mm PWM ARGB Case Fan

Case Fans · Brontix · SKU FN3997-PRIME · Released 2026 · Updated 2026-10-24

Key facts

Benchmark index845 (Case Fans scale)
Category rank#21,687
Street price$29
Power3 W
Performance per dollar29.14
Released2026

Specifications

BrandBrontix
ModelBrontix FN-3997 Prime
Size140 × 140 × 25 mm
Speed200–1,600 RPM (PWM)
Airflow76.8 CFM
Static pressure1.52 mmH₂O
Noise29 dBA
BearingRifle bearing
Connector4-pin PWM + 3-pin 5V ARGB
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-3997 Prime 140mm PWM ARGB Case Fan”, https://vextor7.com/item/18232172 (accessed 2026-10-24).