Hardware Spec Index

Zephyra FN-4578 Pro 140mm PWM Case Fan (3-Pack)

Case Fans · Zephyra · SKU FN4578-PRO · Released 2020 · Updated 2026-10-23

Key facts

Benchmark index415 (Case Fans scale)
Category rank#16,483
Street price$19
Power3 W
Performance per dollar21.84
Released2020

Specifications

BrandZephyra
ModelZephyra FN-4578 Pro
Size140 × 140 × 25 mm
Speed300–1,700 RPM (PWM)
Airflow81.6 CFM
Static pressure1.61 mmH₂O
Noise25 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-4578 Pro 140mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/5458822 (accessed 2026-10-23).