Just wanted to pass on this discovery. Even Apple's own support document is wrong: http://support.apple.com/kb/HT4049?viewlocale=en_US&locale=en_US It states that some computers can provide up to 1100mA. Here it is sending 2100mA (equivalent to their updated "fast" iPad charger) to an iPad. I wonder if the non-USB 3.0 computers can send the same amount of current. An iPhone will show as 500mA + 500mA.