PortaPow Fast Charge Only USB Adapter for Apple iPhone, iPad, Blackberry, PS Vita, HTC One, Google Nexus, Other Fast Charging Devices If you have purchased a powerful mains or car USB charger but find that it charges your Apple or Android device slowly or not at all when using a normal micro USB cable, this adapter will most likely solve the problem. Follows the 'Dumb USB' specification' - get the full power from a computer USB socket, mains or car USB charger. PC USB sockets and many other chargers will only charge Apple or Micro USB devices at 0.5A with a normal data cable, this allows charging at 1A or more - twice as fast. Acts as a safeguard - Your device will not enter 'data transfer' mode so there is no risk of data hacking / viruses when charging from an unknown USB socket. New version which combines Apple+Universal into one adaptor now available - search for PortaPow SmartCharge