Hardware Spec Index

Zephyra FN-4255 Ultra 140mm PWM Case Fan (3-Pack)

Case Fans · Zephyra · SKU FN4255-ULTRA · Released 2026 · Updated 2026-10-20

Key facts

Benchmark index531 (Case Fans scale)
Category rank#32,453
Street price$19
Power4 W
Performance per dollar27.95
Released2026

Specifications

BrandZephyra
ModelZephyra FN-4255 Ultra
Size140 × 140 × 25 mm
Speed300–2,900 RPM (PWM)
Airflow139.2 CFM
Static pressure2.75 mmH₂O
Noise29 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-4255 Ultra 140mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/100114 (accessed 2026-10-20).