Compared to conventional copper wire, even with heavy shielding to avoid high frequency interference which longest transmission distance is only 25 meters. USB3.0 AOC should be more suitable for long distance transmission application. USB3.0 AOC provides optical transmission with stable signal, which transmission distance is able to reach to 100 meters. AOC (active optical cable) is with compact power-saving design, which is compliant with USB3.0 transmission conditions. It's able to reach longer, faster and more stable signal transmission without any modification in the structure of devices.