Hardware Spec Index

Zephyra FN-4390 Pro 120mm PWM Case Fan

Case Fans · Zephyra · SKU FN4390-PRO · Released 2025 · Updated 2026-10-24

Key facts

Benchmark index497 (Case Fans scale)
Category rank#14,606
Street price$19
Power3 W
Performance per dollar26.16
Released2025

Specifications

BrandZephyra
ModelZephyra FN-4390 Pro
Size120 × 120 × 25 mm
Speed400–2,400 RPM (PWM)
Airflow81.6 CFM
Static pressure2.64 mmH₂O
Noise23 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-4390 Pro 120mm PWM Case Fan”, https://vextor7.com/item/2804927 (accessed 2026-10-24).