Hardware Spec Index

Zephyra FN-3947 Core 140mm PWM Case Fan

Case Fans · Zephyra · SKU FN3947-CORE · Released 2025 · Updated 2026-10-20

Key facts

Benchmark index654 (Case Fans scale)
Category rank#3,376
Street price$19
Power4 W
Performance per dollar34.42
Released2025

Specifications

BrandZephyra
ModelZephyra FN-3947 Core
Size140 × 140 × 25 mm
Speed500–3,000 RPM (PWM)
Airflow144.0 CFM
Static pressure2.85 mmH₂O
Noise26 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-3947 Core 140mm PWM Case Fan”, https://vextor7.com/item/7954428 (accessed 2026-10-20).