... . *Can connect any large current USB devices,such as camera,keyboard,mobile harddisk etc. *Usb ports supports hot-swapping ... because of you are NOT FULLY INSERT the kit. 2. You need to insert the SD or flash disk ... must save at "DCIM" folder. 5. For ipad 4.2 or higher, Error message "Cannot Use Device. The connted ... too much power." it is the bug for 4.2, because of the 3.22 support 100mA current , ...