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Does a USB flash drive need the power cables found in a USB extension cable, or does it only need the data cables? Answered

So, I have a project I hope to complete in modifying a tron identity disc.   Here is my hopeful setup: A flash drive is hidden inside the disc with a usb power cord extension going from it to the outside world.  My hope is to have the 5V of power coming from my computer turn on a set of extra LEDs in the disc, while the data can be accessed and transferred.  Does a USB flash drive need the power inputs from a normal USB cord to function?


A standard USB lead supplies power.

And the usb flash drive needs the power to work. Unless the leds draw large amounts of current there is no reason the usb port can't supply both.

Okay, awesome, that's all I needed! Thanks!