Hardware Spec Index

Zephyra FN-4181 Ultra 140mm PWM ARGB Case Fan

Case Fans · Zephyra · SKU FN4181-ULTRA · Released 2022 · Updated 2026-10-19

Key facts

Benchmark index1,198 (Case Fans scale)
Category rank#451
Street price$49
Power4 W
Performance per dollar24.45
Released2022

Specifications

BrandZephyra
ModelZephyra FN-4181 Ultra
Size140 × 140 × 25 mm
Speed300–2,500 RPM (PWM)
Airflow120.0 CFM
Static pressure2.38 mmH₂O
Noise32 dBA
BearingMagnetic levitation
Connector4-pin PWM + 3-pin 5V ARGB
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-4181 Ultra 140mm PWM ARGB Case Fan”, https://vextor7.com/item/785115 (accessed 2026-10-19).