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Thread: i need to power 2 60mm fans with a usb cable




  1. #1
    Join Date
    Jan 2004
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    i'm going to cut and rout out holes in my desk to fit 2 60mm fans so i can cool off my laptop when it's on my desk. i don't want to buy a laptop cooler tray thing because i'm cheap, and i've already got fans and broken usb peripherals to get the cable from. i know you can do it because most laptop coolers are usb powered. i need to know what part of the usb cable conducts the power to the fans. help?

  2. #2
    Join Date
    Nov 2001
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    New England Highlands, Australia
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    The voltage of USB ports is only 5v which in some cases isn't enough to start a fan let alone run one at anywhere near full speed.

  3. #3
    Join Date
    Jan 2004
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    :thumbs do

    what voltage would i need to pull off? how many batteries do i need?

  4. #4
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    Nov 2001
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    8 x 1.5v batteries to get to 12v but they'd likely not last long. Better to get a 12v transformer with enough ampage to run them.

  5. #5
    Join Date
    Jan 2003
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    You might try something like this. I'm sure there are other fans that run natively on 5V as well. I like the USB idea. Very convenient :thumb:
    <img src="http://www.statgfx.com/statgfx/folding/?&username=Wordbiker&border=0,255,0&tr ans=yes&template=fah_original&.jpg" alt="www.Statgfx.com" />
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  6. #6
    Join Date
    Apr 2002
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    Somehow I don't like the idea of straining the usb power to it's limit. But I agree it would be very convenient.. :)

  7. #7
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    Feb 2003
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    Fincastle, IN, USA
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    Quote Originally Posted by The__tweaker
    Somehow I don't like the idea of straining the usb power to it's limit. But I agree it would be very convenient.. :)
    I agree

  8. #8
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    Jan 2003
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    Wimps...:p
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