Hardware Spec Index

Zephyra FN-1690 Ultra 140mm PWM Case Fan (3-Pack)

Case Fans · Zephyra · SKU FN1690-ULTRA · Released 2019 · Updated 2026-10-25

Key facts

Benchmark index740 (Case Fans scale)
Category rank#14,458
Street price$29
Power4 W
Performance per dollar25.52
Released2019

Specifications

BrandZephyra
ModelZephyra FN-1690 Ultra
Size140 × 140 × 25 mm
Speed500–2,900 RPM (PWM)
Airflow139.2 CFM
Static pressure2.75 mmH₂O
Noise35 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-1690 Ultra 140mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/21784986 (accessed 2026-10-25).