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    How Can USB Connected Network Wi-Fi Adapter Work on Full Potential?

    Hello, I have USB 2.0 network Wi-Fi 802.11n 300Mbps dongle that has maximum speed of 50Mbps. I saw the following USB 3.0 Wi-Fi 802.11ac 1200Mbps adapter: What I wondering about is how can this adapter achieve x4 bandwidth compared to 300Mbps still through 5v 500mAh USB port. Obviously I will...