Hardware Spec Index

Zephyra FN-3971 SE 140mm PWM Case Fan

Case Fans · Zephyra · SKU FN3971-SE · Released 2019 · Updated 2026-10-21

Key facts

Benchmark index396 (Case Fans scale)
Category rank#7,055
Street price$19
Power3 W
Performance per dollar20.84
Released2019

Specifications

BrandZephyra
ModelZephyra FN-3971 SE
Size140 × 140 × 25 mm
Speed200–1,900 RPM (PWM)
Airflow91.2 CFM
Static pressure1.80 mmH₂O
Noise28 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-3971 SE 140mm PWM Case Fan”, https://vextor7.com/item/21588361 (accessed 2026-10-21).