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Old 04-14-2012, 09:43 PM   #36
MLXXXp has learned how to buy an e-book online
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Originally Posted by DaleDe View Post
The input to a USB port is certainly expected to be regulated and should not exceed 5.1 Volts, nominally 5.0 V.
Actually, the 5V for PC power supplies, and thus USB ports, is specified to be within plus or minus 5%. Up to 5.25V should be safe and it should work properly down to 4.75V.
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