Hardware Spec Index

Zephyra FN-3978 SE 120mm PWM Case Fan

Case Fans · Zephyra · SKU FN3978-SE · Released 2019 · Updated 2026-10-23

Key facts

Benchmark index426 (Case Fans scale)
Category rank#11,118
Street price$19
Power3 W
Performance per dollar22.42
Released2019

Specifications

BrandZephyra
ModelZephyra FN-3978 SE
Size120 × 120 × 25 mm
Speed500–1,800 RPM (PWM)
Airflow61.2 CFM
Static pressure1.98 mmH₂O
Noise27 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-3978 SE 120mm PWM Case Fan”, https://vextor7.com/item/3061206 (accessed 2026-10-23).