Hardware Spec Index

Zephyra FN-3978 Max 120mm PWM Case Fan

Case Fans · Zephyra · SKU FN3978-MAX · Released 2021 · Updated 2026-10-19

Key facts

Benchmark index557 (Case Fans scale)
Category rank#12,648
Street price$19
Power3 W
Performance per dollar29.32
Released2021

Specifications

BrandZephyra
ModelZephyra FN-3978 Max
Size120 × 120 × 25 mm
Speed200–1,700 RPM (PWM)
Airflow57.8 CFM
Static pressure1.87 mmH₂O
Noise34 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-3978 Max 120mm PWM Case Fan”, https://vextor7.com/item/5572957 (accessed 2026-10-19).