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Windows 7: Which is VCC and GND in this USB cable?

06 Sep 2014   #1
Imrankhan

Windows 7 Home Premium 64bit
 
 
Which is VCC and GND in this USB cable?

I am trying to create cooler pad for my laptop. I have 3 5Volt fans. I pulled out two usb cables from old keyboard and a mouse. Things are different here. I heard it would be Red, White, Green, Black will be inside.
But what I got from both is this. I see no black. but a blue one.
Which is VCC and GND in this USB cable?-20140906_141013.jpg
Its from Intex Usb Keyboard and Mouse bought in India. I tried using my skin(i have no multimeter), Red Green and Blue show some power. But white is dumb. I think white is GND.




My System SpecsSystem Spec
.
06 Sep 2014   #2
Imrankhan

Windows 7 Home Premium 64bit
 
 

Got it. Blue VCC, Red GND.
Tried connecting all cables randomly to fan. And found the working combination.
My System SpecsSystem Spec
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 Which is VCC and GND in this USB cable?




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