Last week, when I learned that the price of the keyboard is not that much, I bought it right away. So at least to make the computer set complete and ready in case someone will come to diagnose the computer of which part of it is lacking or need to reprogram. I am not sure. I didn’t open it yet I am scared that what if we will open it and it needs a transformer. I didn’t buy a transformer yet! Do I have to? I am not sure, actually I am not sure as well if when we can hire someone to check for it. My niece who is an IT student don’t know as well what to do or what should we do with the computer that her mother sent us last month.