Hardware Spec Index

Zephyra FN-6639 Ultra 120mm PWM Case Fan

Case Fans · Zephyra · SKU FN6639-ULTRA · Released 2022 · Updated 2026-10-26

Key facts

Benchmark index510 (Case Fans scale)
Category rank#18,050
Street price$19
Power4 W
Performance per dollar26.84
Released2022

Specifications

BrandZephyra
ModelZephyra FN-6639 Ultra
Size120 × 120 × 25 mm
Speed200–2,700 RPM (PWM)
Airflow91.8 CFM
Static pressure2.97 mmH₂O
Noise32 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-6639 Ultra 120mm PWM Case Fan”, https://vextor7.com/item/19972562 (accessed 2026-10-26).