Hardware Spec Index

Zephyra FN-3949 Pro 120mm PWM Case Fan

Case Fans · Zephyra · SKU FN3949-PRO · Released 2022 · Updated 2026-10-20

Key facts

Benchmark index458 (Case Fans scale)
Category rank#28,834
Street price$19
Power2 W
Performance per dollar24.11
Released2022

Specifications

BrandZephyra
ModelZephyra FN-3949 Pro
Size120 × 120 × 25 mm
Speed300–1,400 RPM (PWM)
Airflow47.6 CFM
Static pressure1.54 mmH₂O
Noise29 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-3949 Pro 120mm PWM Case Fan”, https://vextor7.com/item/7686497 (accessed 2026-10-20).