Hardware Spec Index

Zephyra FN-1657 Ultra 140mm PWM Case Fan

Case Fans · Zephyra · SKU FN1657-ULTRA · Released 2025 · Updated 2026-10-26

Key facts

Benchmark index699 (Case Fans scale)
Category rank#29,132
Street price$19
Power3 W
Performance per dollar36.79
Released2025

Specifications

BrandZephyra
ModelZephyra FN-1657 Ultra
Size140 × 140 × 25 mm
Speed200–2,100 RPM (PWM)
Airflow100.8 CFM
Static pressure2.00 mmH₂O
Noise27 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-1657 Ultra 140mm PWM Case Fan”, https://vextor7.com/item/1785420 (accessed 2026-10-26).