How can I keep USB's ports active while in sleep mode?

OK, for some of you that may have the same problem or question as me. I have been testing my MAC Book Pro for ways to continue to power the usb while laptop in standby or off. I have found the following thing to work or not work.
1. The laptop doesn't send any power to your USB's when it is powered off reguardless if it is plugged in or not.
2. If laptop is put in standby no power is sent to USB's unless the power cord is plugged in on the laptop. So once again if you plug your laptop in and then put it in standby it does still send power to the USB's when requested.
So the bottom line is, On my last laptop (toshiba) I was given an option to go into system preference and make a change that allowed my laptop to continue to send power to USB's when requested while in standby or powered off. I was hoping I could do the same thing with my new smokin Mac Book Pro but I haven't found that kind of option in the MAC.

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Attachments:
sphere.JPG ‏36 KB
{B0399BA1-6FE3-48DD-B633-17AF6C33DC79}.JPG ‏15 KB

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