Hardware Spec Index

Brontix FN-3978 SE 120mm PWM Case Fan (3-Pack)

Case Fans · Brontix · SKU FN3978-SE · Released 2024 · Updated 2026-10-21

Key facts

Benchmark index487 (Case Fans scale)
Category rank#2,469
Street price$19
Power3 W
Performance per dollar25.63
Released2024

Specifications

BrandBrontix
ModelBrontix FN-3978 SE
Size120 × 120 × 25 mm
Speed400–2,200 RPM (PWM)
Airflow74.8 CFM
Static pressure2.42 mmH₂O
Noise36 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Brontix FN-3978 SE 120mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/8801971 (accessed 2026-10-21).