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Thread: Will the T100 USB port power an external sound card?

  1. #1
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    Will the T100 USB port power an external sound card?


    I own an audio interface (an external sound card) which is a USB 2.0 bus powered device:

    PreSonus | AudioBox 22VSL

    Could someone please confirm if the Asus Transformer T100 tablet, which has a USB 3.0 port, will provide enough power to be able to power this external audio interface?



  2. #2
    Since the spec page for this device shows... USB bus-powered, +5 VDC, < 500 mA... I don't think you'd want to power it, at least for very long, with your T100. I'd suggest plugging the USB cable from the device into a separate USB output power brick to power the device.

  3. #3
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    Yes, but it is likely to drain the battery on the T100 rather quickly.
    rscheller likes this.

  4. #4
    LjL is offline
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    500mA is about the same as my T100 consumes when it's more idle than not but normally set-up (normal brightness and wifi). So under this assumption, the soundcard would potentially halve the battery life.

    However, my T100 is often closer to 1000mA, and those specs say "< 500mA", which makes me think it's mostly to tell us it can be powered by normal USB 2.0 ports, but really takes up less power than that most of the time.

    So if I had to guess, I wouldn't really expect more than say 20% or 30% additional power usage at worst.



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