Hardware Spec Index

Zephyra FN-4398 Ultra 140mm PWM Case Fan

Case Fans · Zephyra · SKU FN4398-ULTRA · Released 2024 · Updated 2026-10-23

Key facts

Benchmark index259 (Case Fans scale)
Category rank#34,090
Street price$9
Power4 W
Performance per dollar28.78
Released2024

Specifications

BrandZephyra
ModelZephyra FN-4398 Ultra
Size140 × 140 × 25 mm
Speed400–3,000 RPM (PWM)
Airflow144.0 CFM
Static pressure2.85 mmH₂O
Noise34 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-4398 Ultra 140mm PWM Case Fan”, https://vextor7.com/item/91360320 (accessed 2026-10-23).