US AC to DC 5V 3A Micro USB Power Supply Adapter for Windows Android Tablet PC Specification‎:‎ Quantity‎:‎ 1 pcs Model‎:‎ MDL‎-0530 AC Plug standard‎:‎ US Input‎:‎ AC 110~240V  50/60Hz Output‎:‎ DC 5V  3A Cable length‎:‎ Approx‎.‎ 1 m DC Plug Dimension‎:‎ Micro USB 5Pin DC Plug polarity‎:‎ inside positive ‎(‎+‎)‎  outside  negative ‎(‎‎-‎)‎ Overload Protection Short Circuit Protection Over voltage protection Efficiency‎:‎ ‎?‎80% Note‎:‎ Please make sure the output and connector is the same as it will fit for‎.‎ ‎(‎ It is retail‎,‎ no packaging ‎)‎