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?
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