Hardware Spec Index

Zephyra FN-3909 Pro 120mm PWM ARGB Case Fan

Case Fans · Zephyra · SKU FN3909-PRO · Released 2021 · Updated 2026-10-19

Key facts

Benchmark index1,152 (Case Fans scale)
Category rank#39,529
Street price$39
Power3 W
Performance per dollar29.54
Released2021

Specifications

BrandZephyra
ModelZephyra FN-3909 Pro
Size120 × 120 × 25 mm
Speed500–2,000 RPM (PWM)
Airflow68.0 CFM
Static pressure2.20 mmH₂O
Noise35 dBA
BearingFluid dynamic bearing
Connector4-pin PWM + 3-pin 5V ARGB
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-3909 Pro 120mm PWM ARGB Case Fan”, https://vextor7.com/item/5404409 (accessed 2026-10-19).