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What is the power output of the powered USB port on the M6400 ?

Discussion in 'Dell Latitude, Vostro, and Precision' started by Kyle, Jun 21, 2010.

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  1. Kyle

    Kyle JVC SZ2000 Dual-Driver Headphones

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    What is the power output of the powered USB port on the M6400 ?
     
    Kyle, Jun 21, 2010
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  2. Robin24k

    Robin24k Notebook Deity

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    Max output for USB is 500mA, but typical output is usually less.
     
    Robin24k, Jun 21, 2010
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  3. John Ratsey

    John Ratsey Moderately inquisitive Super Moderator

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    In my experience the ports can deliver a bit more than the nominal 500mA because they can power up a 2.5" HDD in an enclosure (typically 3W = 600mA).

    John
     
    John Ratsey, Jun 21, 2010
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  4. Kyle

    Kyle JVC SZ2000 Dual-Driver Headphones

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    I'm talking about the powered USB port on the M6400. The M6400 has 3USB ports. One is specially labelled as powered.
     
    Kyle, Jun 21, 2010
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  5. John Ratsey

    John Ratsey Moderately inquisitive Super Moderator

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    I don't think that the power rating of that port is any different. The difference is that this port can supply power when the computer is turned off (if you enable the feature in the BIOS). Note that you need to plug any device in after the computer is powered down in order to switch on the power. This is to stop any device that was connected when the computer is shut down from continuing to receive power.

    John
     
    John Ratsey, Jun 22, 2010
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  6. Kyle

    Kyle JVC SZ2000 Dual-Driver Headphones

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    Oh, I was thinking powered USB meant something else then! :eek:
     
    Kyle, Jun 22, 2010
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