Hardware Spec Index

Zephyra FN-4731 Pro 120mm PWM Case Fan

Case Fans · Zephyra · SKU FN4731-PRO · Released 2020 · Updated 2026-10-18

Key facts

Benchmark index483 (Case Fans scale)
Category rank#9,390
Street price$19
Power4 W
Performance per dollar25.42
Released2020

Specifications

BrandZephyra
ModelZephyra FN-4731 Pro
Size120 × 120 × 25 mm
Speed200–2,800 RPM (PWM)
Airflow95.2 CFM
Static pressure3.08 mmH₂O
Noise32 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-4731 Pro 120mm PWM Case Fan”, https://vextor7.com/item/17500083 (accessed 2026-10-18).