Hardware Spec Index

Zephyra FN-4178 Ultra 120mm PWM Case Fan

Case Fans · Zephyra · SKU FN4178-ULTRA · Released 2020 · Updated 2026-10-19

Key facts

Benchmark index594 (Case Fans scale)
Category rank#15,909
Street price$19
Power3 W
Performance per dollar31.26
Released2020

Specifications

BrandZephyra
ModelZephyra FN-4178 Ultra
Size120 × 120 × 25 mm
Speed400–1,900 RPM (PWM)
Airflow64.6 CFM
Static pressure2.09 mmH₂O
Noise26 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-4178 Ultra 120mm PWM Case Fan”, https://vextor7.com/item/20035627 (accessed 2026-10-19).