USB Amperage?

Discussion in 'MacBook Air' started by Silver5656, Aug 24, 2011.

  1. Silver5656 macrumors member

    Feb 24, 2010
    does anybody know what the amperage of the usb ports are? typical .5a or the 2.1 (i think?) needed to charge the ipad?
  2. iphonsteve4ajob macrumors regular

    Aug 6, 2011
    Not too sure... this might help. Check out the second from the last post. Member "hundleton1" seems pretty knowledgeable.

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