Hardware Spec Index

Zephyra FN-5891 Ultra 140mm PWM Case Fan

Case Fans · Zephyra · SKU FN5891-ULTRA · Released 2019 · Updated 2026-10-24

Key facts

Benchmark index219 (Case Fans scale)
Category rank#28,103
Street price$9
Power3 W
Performance per dollar24.33
Released2019

Specifications

BrandZephyra
ModelZephyra FN-5891 Ultra
Size140 × 140 × 25 mm
Speed200–2,000 RPM (PWM)
Airflow96.0 CFM
Static pressure1.90 mmH₂O
Noise23 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-5891 Ultra 140mm PWM Case Fan”, https://vextor7.com/item/4565907 (accessed 2026-10-24).