Hardware Spec Index

Zephyra FN-3948 Ultra 140mm PWM ARGB Case Fan (3-Pack)

Case Fans · Zephyra · SKU FN3948-ULTRA · Released 2019 · Updated 2026-10-22

Key facts

Benchmark index797 (Case Fans scale)
Category rank#39,433
Street price$29
Power4 W
Performance per dollar27.48
Released2019

Specifications

BrandZephyra
ModelZephyra FN-3948 Ultra
Size140 × 140 × 25 mm
Speed300–2,500 RPM (PWM)
Airflow120.0 CFM
Static pressure2.38 mmH₂O
Noise30 dBA
BearingFluid dynamic bearing
Connector4-pin PWM + 3-pin 5V ARGB
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-3948 Ultra 140mm PWM ARGB Case Fan (3-Pack)”, https://vextor7.com/item/7749669 (accessed 2026-10-22).