Hardware Spec Index

Zephyra FN-1657 Ultra 140mm PWM Case Fan

Case Fans · Zephyra · SKU FN1657-ULTRA · Released 2021 · Updated 2026-10-25

Key facts

Benchmark index314 (Case Fans scale)
Category rank#35,816
Street price$9
Power3 W
Performance per dollar34.89
Released2021

Specifications

BrandZephyra
ModelZephyra FN-1657 Ultra
Size140 × 140 × 25 mm
Speed300–1,800 RPM (PWM)
Airflow86.4 CFM
Static pressure1.71 mmH₂O
Noise32 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-1657 Ultra 140mm PWM Case Fan”, https://vextor7.com/item/13477294 (accessed 2026-10-25).