Hardware Spec Index

Zephyra FN-3946 Prime 120mm PWM Case Fan (3-Pack)

Case Fans · Zephyra · SKU FN3946-PRIME · Released 2025 · Updated 2026-10-21

Key facts

Benchmark index249 (Case Fans scale)
Category rank#35,993
Street price$9
Power3 W
Performance per dollar27.67
Released2025

Specifications

BrandZephyra
ModelZephyra FN-3946 Prime
Size120 × 120 × 25 mm
Speed400–1,800 RPM (PWM)
Airflow61.2 CFM
Static pressure1.98 mmH₂O
Noise35 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-3946 Prime 120mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/6739633 (accessed 2026-10-21).