Hardware Spec Index

Zephyra FN-3891 Plus 140mm PWM Case Fan

Case Fans · Zephyra · SKU FN3891-PLUS · Released 2020 · Updated 2026-10-22

Key facts

Benchmark index224 (Case Fans scale)
Category rank#48,834
Street price$9
Power3 W
Performance per dollar24.89
Released2020

Specifications

BrandZephyra
ModelZephyra FN-3891 Plus
Size140 × 140 × 25 mm
Speed400–1,500 RPM (PWM)
Airflow72.0 CFM
Static pressure1.43 mmH₂O
Noise25 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-3891 Plus 140mm PWM Case Fan”, https://vextor7.com/item/43676835 (accessed 2026-10-22).