Hardware Spec Index

Zephyra FN-3881 Ultra 140mm PWM Case Fan

Case Fans · Zephyra · SKU FN3881-ULTRA · Released 2023 · Updated 2026-10-25

Key facts

Benchmark index683 (Case Fans scale)
Category rank#18,558
Street price$19
Power3 W
Performance per dollar35.95
Released2023

Specifications

BrandZephyra
ModelZephyra FN-3881 Ultra
Size140 × 140 × 25 mm
Speed300–2,000 RPM (PWM)
Airflow96.0 CFM
Static pressure1.90 mmH₂O
Noise28 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-3881 Ultra 140mm PWM Case Fan”, https://vextor7.com/item/7867893 (accessed 2026-10-25).