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 Edited by giaur500 at 2015-10-1 02:57  
 
Hi, 
 
OrangePI PC. I can't use multiple usb ports at the same time. For example, if I connect usb mouse, it works. Then, usb keyboard to second usb port and keyboard does not work (not recognized and not even powered). 
 
However, if I use external usb hub, I can connect multiple devices to it and all is ok. What's the problem? Do you have any ideas? Possible my power ac adaptor is weak? But it's 2A as recommended. 
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