Hardware Spec Index

Zephyra FN-3971 Plus 140mm PWM Case Fan

Case Fans · Zephyra · SKU FN3971-PLUS · Released 2025 · Updated 2026-10-26

Key facts

Benchmark index671 (Case Fans scale)
Category rank#11,708
Street price$19
Power4 W
Performance per dollar35.32
Released2025

Specifications

BrandZephyra
ModelZephyra FN-3971 Plus
Size140 × 140 × 25 mm
Speed200–2,600 RPM (PWM)
Airflow124.8 CFM
Static pressure2.47 mmH₂O
Noise22 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-3971 Plus 140mm PWM Case Fan”, https://vextor7.com/item/8475401 (accessed 2026-10-26).