Hardware Spec Index

Zephyra FN-3945 Ultra 140mm PWM Case Fan

Case Fans · Zephyra · SKU FN3945-ULTRA · Released 2024 · Updated 2026-10-21

Key facts

Benchmark index598 (Case Fans scale)
Category rank#39,065
Street price$19
Power3 W
Performance per dollar31.47
Released2024

Specifications

BrandZephyra
ModelZephyra FN-3945 Ultra
Size140 × 140 × 25 mm
Speed400–1,600 RPM (PWM)
Airflow76.8 CFM
Static pressure1.52 mmH₂O
Noise30 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-3945 Ultra 140mm PWM Case Fan”, https://vextor7.com/item/5666263 (accessed 2026-10-21).