Hardware Spec Index

Zephyra FN-3647 Pro 120mm PWM Case Fan

Case Fans · Zephyra · SKU FN3647-PRO · Released 2022 · Updated 2026-10-25

Key facts

Benchmark index396 (Case Fans scale)
Category rank#13,718
Street price$9
Power3 W
Performance per dollar44.00
Released2022

Specifications

BrandZephyra
ModelZephyra FN-3647 Pro
Size120 × 120 × 25 mm
Speed500–1,700 RPM (PWM)
Airflow57.8 CFM
Static pressure1.87 mmH₂O
Noise32 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-3647 Pro 120mm PWM Case Fan”, https://vextor7.com/item/241176 (accessed 2026-10-25).