Hardware Spec Index

Zephyra FN-4657 Ultra 120mm PWM ARGB Case Fan

Case Fans · Zephyra · SKU FN4657-ULTRA · Released 2020 · Updated 2026-10-24

Key facts

Benchmark index1,086 (Case Fans scale)
Category rank#4,655
Street price$39
Power3 W
Performance per dollar27.85
Released2020

Specifications

BrandZephyra
ModelZephyra FN-4657 Ultra
Size120 × 120 × 25 mm
Speed200–2,100 RPM (PWM)
Airflow71.4 CFM
Static pressure2.31 mmH₂O
Noise28 dBA
BearingFluid dynamic bearing
Connector4-pin PWM + 3-pin 5V ARGB
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-4657 Ultra 120mm PWM ARGB Case Fan”, https://vextor7.com/item/94862255 (accessed 2026-10-24).