Hardware Spec Index

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

Case Fans · Zephyra · SKU FN4578-MAX · Released 2025 · Updated 2026-10-26

Key facts

Benchmark index557 (Case Fans scale)
Category rank#13,234
Street price$19
Power3 W
Performance per dollar29.32
Released2025

Specifications

BrandZephyra
ModelZephyra FN-4578 Max
Size140 × 140 × 25 mm
Speed300–2,400 RPM (PWM)
Airflow115.2 CFM
Static pressure2.28 mmH₂O
Noise34 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-4578 Max 140mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/4251190 (accessed 2026-10-26).