What is USB 2.0 output voltage on 17 in Macbook Pro?

Need to know the exact output voltage of the MBpro 17" USB port- as i am hooking up very delicate electronic periphrial
--cant find it on line anywhere.. does anyone know?
[email protected]
thank you
g

You may find this Apple article useful:
http://support.apple.com/kb/HT4049
Ciao.

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What is USB 2.0 output voltage on 17 in Macbook Pro?

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