Hardware Spec Index

Zephyra FN-4640 Pro 120mm PWM ARGB Case Fan

Case Fans · Zephyra · SKU FN4640-PRO · Released 2022 · Updated 2026-10-25

Key facts

Benchmark index824 (Case Fans scale)
Category rank#2,144
Street price$29
Power3 W
Performance per dollar28.41
Released2022

Specifications

BrandZephyra
ModelZephyra FN-4640 Pro
Size120 × 120 × 25 mm
Speed500–2,300 RPM (PWM)
Airflow78.2 CFM
Static pressure2.53 mmH₂O
Noise36 dBA
BearingFluid dynamic bearing
Connector4-pin PWM + 3-pin 5V ARGB
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-4640 Pro 120mm PWM ARGB Case Fan”, https://vextor7.com/item/5564093 (accessed 2026-10-25).