Hardware Spec Index

Zephyra FN-1647 Ultra 140mm PWM ARGB Case Fan

Case Fans · Zephyra · SKU FN1647-ULTRA · Released 2021 · Updated 2026-10-25

Key facts

Benchmark index1,130 (Case Fans scale)
Category rank#28,138
Street price$29
Power4 W
Performance per dollar38.97
Released2021

Specifications

BrandZephyra
ModelZephyra FN-1647 Ultra
Size140 × 140 × 25 mm
Speed500–2,900 RPM (PWM)
Airflow139.2 CFM
Static pressure2.75 mmH₂O
Noise29 dBA
BearingRifle bearing
Connector4-pin PWM + 3-pin 5V ARGB
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-1647 Ultra 140mm PWM ARGB Case Fan”, https://vextor7.com/item/1430451 (accessed 2026-10-25).