Hardware Spec Index

Zephyra FN-4581 Prime 120mm PWM Case Fan (3-Pack)

Case Fans · Zephyra · SKU FN4581-PRIME · Released 2019 · Updated 2026-10-21

Key facts

Benchmark index210 (Case Fans scale)
Category rank#12,530
Street price$9
Power3 W
Performance per dollar23.33
Released2019

Specifications

BrandZephyra
ModelZephyra FN-4581 Prime
Size120 × 120 × 25 mm
Speed500–2,300 RPM (PWM)
Airflow78.2 CFM
Static pressure2.53 mmH₂O
Noise25 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-4581 Prime 120mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/1049397 (accessed 2026-10-21).