Hardware Spec Index

Zephyra FN-6639 Pro 120mm PWM Case Fan

Case Fans · Zephyra · SKU FN6639-PRO · Released 2025 · Updated 2026-10-24

Key facts

Benchmark index608 (Case Fans scale)
Category rank#46,966
Street price$19
Power3 W
Performance per dollar32.00
Released2025

Specifications

BrandZephyra
ModelZephyra FN-6639 Pro
Size120 × 120 × 25 mm
Speed300–1,600 RPM (PWM)
Airflow54.4 CFM
Static pressure1.76 mmH₂O
Noise35 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-6639 Pro 120mm PWM Case Fan”, https://vextor7.com/item/10039939 (accessed 2026-10-24).