Hardware Spec Index

Zephyra FN-1781 Ultra 140mm PWM Case Fan

Case Fans · Zephyra · SKU FN1781-ULTRA · Released 2024 · Updated 2026-10-23

Key facts

Benchmark index255 (Case Fans scale)
Category rank#34,779
Street price$9
Power3 W
Performance per dollar28.33
Released2024

Specifications

BrandZephyra
ModelZephyra FN-1781 Ultra
Size140 × 140 × 25 mm
Speed500–2,300 RPM (PWM)
Airflow110.4 CFM
Static pressure2.19 mmH₂O
Noise23 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-1781 Ultra 140mm PWM Case Fan”, https://vextor7.com/item/94550103 (accessed 2026-10-23).