Hardware Spec Index

Brontix FN-3977 Plus 140mm PWM ARGB Case Fan

Case Fans · Brontix · SKU FN3977-PLUS · Released 2026 · Updated 2026-10-26

Key facts

Benchmark index1,246 (Case Fans scale)
Category rank#13,413
Street price$49
Power4 W
Performance per dollar25.43
Released2026

Specifications

BrandBrontix
ModelBrontix FN-3977 Plus
Size140 × 140 × 25 mm
Speed200–2,500 RPM (PWM)
Airflow120.0 CFM
Static pressure2.38 mmH₂O
Noise29 dBA
BearingMagnetic levitation
Connector4-pin PWM + 3-pin 5V ARGB
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-3977 Plus 140mm PWM ARGB Case Fan”, https://vextor7.com/item/4963522 (accessed 2026-10-26).