Hardware Spec Index

Zephyra FN-3891 Plus 140mm PWM Case Fan (3-Pack)

Case Fans · Zephyra · SKU FN3891-PLUS · Released 2025 · Updated 2026-10-24

Key facts

Benchmark index745 (Case Fans scale)
Category rank#32,378
Street price$29
Power3 W
Performance per dollar25.69
Released2025

Specifications

BrandZephyra
ModelZephyra FN-3891 Plus
Size140 × 140 × 25 mm
Speed200–2,200 RPM (PWM)
Airflow105.6 CFM
Static pressure2.09 mmH₂O
Noise33 dBA
BearingFluid dynamic bearing
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 (3-Pack)”, https://vextor7.com/item/7274013 (accessed 2026-10-24).