Hardware Spec Index

Brontix FN-3976 Prime 120mm PWM Case Fan

Case Fans · Brontix · SKU FN3976-PRIME · Released 2026 · Updated 2026-10-23

Key facts

Benchmark index275 (Case Fans scale)
Category rank#9,085
Street price$9
Power3 W
Performance per dollar30.56
Released2026

Specifications

BrandBrontix
ModelBrontix FN-3976 Prime
Size120 × 120 × 25 mm
Speed400–2,000 RPM (PWM)
Airflow68.0 CFM
Static pressure2.20 mmH₂O
Noise27 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-3976 Prime 120mm PWM Case Fan”, https://vextor7.com/item/7200463 (accessed 2026-10-23).