Hardware Spec Index

Zephyra FN-4939 Ultra 140mm PWM Case Fan

Case Fans · Zephyra · SKU FN4939-ULTRA · Released 2019 · Updated 2026-10-21

Key facts

Benchmark index684 (Case Fans scale)
Category rank#17,317
Street price$19
Power3 W
Performance per dollar36.00
Released2019

Specifications

BrandZephyra
ModelZephyra FN-4939 Ultra
Size140 × 140 × 25 mm
Speed200–2,200 RPM (PWM)
Airflow105.6 CFM
Static pressure2.09 mmH₂O
Noise27 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-4939 Ultra 140mm PWM Case Fan”, https://vextor7.com/item/83351800 (accessed 2026-10-21).