Voltage converter - Australia to USA by: Blaise Pascal
Hi there,
First you have to check the keybord adapter' specifications on this. It would give you an indication on how to handle this issue. Mainly it says something like "input 120 Volts"; "input 230volts" or "110 - 240volt".
As the mains power in Australia is 230V and in the USA is 120V, I would suggest to use a step-up "voltage converter", also called "transformer" which will convert the 110V - 60Hz to 230 Volt - 50Hz in case the input power of your adapter is 230volt.