Hardware Spec Index

Zephyra FN-3391 Pro 120mm PWM Case Fan

Case Fans · Zephyra · SKU FN3391-PRO · Released 2022 · Updated 2026-10-19

Key facts

Benchmark index437 (Case Fans scale)
Category rank#19,997
Street price$19
Power2 W
Performance per dollar23.00
Released2022

Specifications

BrandZephyra
ModelZephyra FN-3391 Pro
Size120 × 120 × 25 mm
Speed300–1,400 RPM (PWM)
Airflow47.6 CFM
Static pressure1.54 mmH₂O
Noise33 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-3391 Pro 120mm PWM Case Fan”, https://vextor7.com/item/726151 (accessed 2026-10-19).